[HOW-TO] Simplified Root + Recovery + Custom ROM - Optimus V Android Development

This is a simplified guide for those new to rooting & flashing a custom ROM on the Optimus V. No need to type complex commands that are hard to follow and prone to mistakes. Basically there are 3 main steps: Root, Install custom recovery, & flash custom ROM.
Windows Drivers for the Optimus V (Optional but suggested):
http://www.lg-phones.org/wp-content/uploads/LG-Optimus-V.zip
Rooting
Rooting is the process of gaining administrative rights to the phone so one can do customizations that aren't normally allowed. Root by itself doesn't do anything interesting, unless there's an app that needs it. The fancy stuff comes from custom ROMs. Just remember Virgin Mobile Activation only works on Froyo ROMs, so do it before going to Gingerbread. The easiest way to root nowadays is to use GingerBreak. It can be found here:
[26.04.2011][v1.2] GingerBreak APK (root for GingerBread) - xda-developers
Instruction Steps:
1. Turn on USB Debugging (Settings - Applications - Development)
2. Copy the GingerBreak.apk to a /sdcard dir, then using a 'file manager' app (search for one in Android Market) install it like a regular app.
3. It can take up to 10 minutes, and will reboot automatically when complete (rooted), if attempt fails, reboot manually & run it again.
Install custom recovery image
The recovery image is an alternative bootup instead of normal Android Operating System. It allows low-level operations such as backup/restore a ROM, wipe partitions, and flash ROMs.
4. Download and copy the recovery image VM670NH_recovery.img (works with new & old OV screens) onto your /sdcard.
5. Install the Flash Image GUI app (save the .apk to a /sdcard directory, then open it with file manager) Run the app & select 'Recovery Image' option with the file above.
Flash Custom ROM
I.H.O CyanogenMod 7 ROM (Gingerbread)
6. Copy the unextracted ROM .zip that you wish to install to the /sdcard dir. Also if installing a CyanogenMod Gingerbread ROM, the unextracted gapps.zip also needs to be placed in the same dir to flash right after the ROM .zip.
7. Boot into Clockworkmod recovery mode (From powered off state, hold vol-down, home, and power button until the LG logo appears).
8. FIRST, BACKUP ORIGINAL ROM! Don't continue until this is successful. Use vol-up/down, camera, & back keys to navigate in recovery.
9. Wipe Data/Factory Reset, wipe cache partition. Under Advanced submenu, wipe dalvik-cache. Then uner Mounts & Storage submenu, format all partitions EXCEPT /sdcard.
10. Flash the custom ROM.zip from sdcard and gapps.zip too if going to a CyanogenMod ROM
11. Reboot and enjoy the new ROM, the first boot takes longer than usual, also some problems may disappear after rebooting.
NOTES:
- NEVER use Android Settings 'Factory Reset' from now on, only do factory reset & wipes from within recovery mode. Most ROMs should have this option removed from the Android settings.
- Some newer Optimus V screens hardware changed, see link: [FIX]Black screen with custom recovery and custom roms (BobZHome's IHO recovery from the Wiki binary -> recovery page also works with newer screens.)
- If restoring a backed up ROM in CWM recovery gives 'MD5 mismatch' error (likely caused by renaming a ROM backup). Try this fix:
# cd /sdcard/clockworkmod/backup/<name_of_backup>
# rm nandroid.md5
# md5sum *img > nandroid.md5
- If you ever want to restore to original stock ROM (ONLY on OV's with older screen), with original recovery and UNrooted:
http://www.prepaidandroid.org/index...e_your_Optimus_V_to_almost_original_condition

titanium backup?
Excellent guide for the likes of me (noob), you might wanna mention titanium backup too

help
Hey u have a great step by step guide, however when I run gingerbreak to root it gives me an error I kno u said reboot manually and I did twice and I couldn't get it to work, any thoughts of to why it did this twice thanks

Zachary droid said:
Hey u have a great step by step guide, however when I run gingerbreak to root it gives me an error I kno u said reboot manually and I did twice and I couldn't get it to work, any thoughts of to why it did this twice thanks
Click to expand...
Click to collapse
What is the exact error you're getting? I believe you have to keep retrying, maybe up to 10 times.

Thanks a lot.Real helpful

Will this work for LG Optimus S? It's been difficult to find specific information for this phone.
Thanks.

KidGusto said:
Will this work for LG Optimus S? It's been difficult to find specific information for this phone.
Thanks.
Click to expand...
Click to collapse
the windows drivers and gingerbreak will work.
you'll need an optimus S custom recovery and rom, though. If you use optimus V software, your home and menu keys will be backwards, and there may be other little issues with the network.
look on android central forums for optimus S development and you'll find roms and recoveries no problem.

Thank you for this. The Rom manager method is great, i was afraid not to brick my optimus one with the adb shell crap and pc connection. They should make a nici sticky like this in the euro section, not with adb crap.

Can this guide by updated, with more details?
The menu options in ROM manager are not the same anymore, and I am flailing around trying to figure out which options to hit.
I'm stuck at the LG logo boot up screen after doing what I think is flashing the bumblebee ROM step. (step 10 in the guide).

I used these steps and they worked great for rooting, but I'm having a problem with recovery. I flashed CWM 3.2.0.1 from ROM Manager and it appeared to work fine, but when I try to boot into recovery I just get a blank screen.
I have done the following:
Busybox 1.19.2 from Stericson, installed to /system/bin
Superuser from market, updated to 2.3.6.3, su is 2.3.2-efgh
Used ROM Manager 4.4.0.7 to flash CWM recovery 3.2.0.1
I've tried getting to recovery using Home+Vol Dn+Power, or the reboot menu option in rom manager, and just get the blank screen.
Anyone run into this or have suggestions?

cobraextreme said:
I used these steps and they worked great for rooting, but I'm having a problem with recovery. I flashed CWM 3.2.0.1 from ROM Manager and it appeared to work fine, but when I try to boot into recovery I just get a blank screen.
I have done the following:
Busybox 1.19.2 from Stericson, installed to /system/bin
Superuser from market, updated to 2.3.6.3, su is 2.3.2-efgh
Used ROM Manager 4.4.0.7 to flash CWM recovery 3.2.0.1
I've tried getting to recovery using Home+Vol Dn+Power, or the reboot menu option in rom manager, and just get the blank screen.
Anyone run into this or have suggestions?
Click to expand...
Click to collapse
[fix]black screen in custom recovery or custom roms
you probably have the newer screen type, which it appears the older custom kernels need a .config setting changed before building to support.
you'll have to use flash_image in adb or terminal.
probably. full instructions and downloads at that link.
yay, you didn't flash a rom through rom manager at the same time! or it'd be a lot harder.

bigsupersquid said:
[fix]black screen in custom recovery or custom roms
you probably have the newer screen type, which it appears the older custom kernels need a .config setting changed before building to support.
you'll have to use flash_image in adb or terminal.
probably. full instructions and downloads at that link.
yay, you didn't flash a rom through rom manager at the same time! or it'd be a lot harder.
Click to expand...
Click to collapse
That did the trick! Thanks!
It would be great to get a sticky about this in here. It's pretty easy to miss the newer display issue if you're just now looking into this forum and don't check AC first.

cobraextreme said:
That did the trick! Thanks!
It would be great to get a sticky about this in here. It's pretty easy to miss the newer display issue if you're just now looking into this forum and don't check AC first.
Click to expand...
Click to collapse
Updated original post with link for the new OV screens.
lamenramen said:
Can this guide by updated, with more details?
The menu options in ROM manager are not the same anymore, and I am flailing around trying to figure out which options to hit.
I'm stuck at the LG logo boot up screen after doing what I think is flashing the bumblebee ROM step. (step 10 in the guide).
Click to expand...
Click to collapse
ROM Manager is only supposed to be use to flash the Clockworkmod recovery image, then everything else is done by booting into the recovery mode. ROM manager's other features should not be used on the OV.

Whyzor said:
Updated original post with link for the new OV screens.
...
Click to expand...
Click to collapse
the only big problem left is getting the "back to stock" up to par for the newer OV's...
if someone could upload the critical part of a nandroid made from the newer stock system after rooting but before installing a custom rom, a more up-to-date back to stock guide could be put up with the newer files, or at least the older files patched with the newer kernel.
anyone want to upload the boot.img from a first nandroid backup off of a newer ov? the boot.img doesn't have any personal info, and it's got the newer kernel, which is all that's needed to fix up the older back-to-stock nandroid files.

bigsupersquid said:
the only big problem left is getting the "back to stock" up to par for the newer OV's...
if someone could upload the critical part of a nandroid made from the newer stock system after rooting but before installing a custom rom, a more up-to-date back to stock guide could be put up with the newer files, or at least the older files patched with the newer kernel.
anyone want to upload the boot.img from a first nandroid backup off of a newer ov? the boot.img doesn't have any personal info, and it's got the newer kernel, which is all that's needed to fix up the older back-to-stock nandroid files.
Click to expand...
Click to collapse
I think there's about an 85% chance that this contains the kernel that you're looking for; not sure if you have some way to deal with that 15% uncertainty but hopefully it's helpful.

Questions about ROM Manager
Hi, can I get a clear clarification about installing the ROM Manager on my LG Optimus p500, when your about to install the ClockwordMod Recovery you would have to select the phone model. LG p500 is not listed. Is there an alternative to it?

luwizwiz said:
Hi, can I get a clear clarification about installing the ROM Manager on my LG Optimus p500, when your about to install the ClockwordMod Recovery you would have to select the phone model. LG p500 is not listed. Is there an alternative to it?
Click to expand...
Click to collapse
This thread is under the Optimus V development section, you should ask questions about the p500 in this forum section:
http://forum.xda-developers.com/forumdisplay.php?f=839

Thanks, i didn't notice that its for Optimus V, i have a Optimus One. many thanks

Complete noob here, I mean a complete noob...first cell phone.
I was hoping to tether my new OV, but i quickly found out i have software version 2.2.2 which does not allow me to turn on hot spots. So I heard I can root my phone to get around this. I did stes 1-3 without issue, now I am stuck on step 3a. When i try to install busybox (not sure what this does for me?), i get the follow error/message "It looks like you have Busybox installed, but there are multiple copies still installed. /system/bin/ is currently as RW. This means that something may have gone wrong in the installation process. Please verify on your end that everything is correctly installed and working.
What do I verify? There is no Busybox app to run, only to install so it looks like the install failed?

ct200 said:
Complete noob here, I mean a complete noob...first cell phone.
I was hoping to tether my new OV, but i quickly found out i have software version 2.2.2 which does not allow me to turn on hot spots. So I heard I can root my phone to get around this. I did stes 1-3 without issue, now I am stuck on step 3a. When i try to install busybox (not sure what this does for me?), i get the follow error/message "It looks like you have Busybox installed, but there are multiple copies still installed. /system/bin/ is currently as RW. This means that something may have gone wrong in the installation process. Please verify on your end that everything is correctly installed and working.
What do I verify? There is no Busybox app to run, only to install so it looks like the install failed?
Click to expand...
Click to collapse
If you go into 'adb shell' from the PC with phone connected, or open the app 'terminal emulator' to get a unix prompt, and type 'busybox', you should see a list of commands. If you get a no command found, then it's not installed. It's suggested to install so you can run unix commands, but not really needed. Root & custom recovery are the important ones. You're probably safe to continue, just make sure to make a backup in recovery mode before doing anything else.

Related

Wildfire ROM update - backup questions

Hi everyone,
I'm using a HTC Wildfire and am considering changing from stock (HTC non-branded) to CyanogenMod for a number of minor reasons. Could anyone just confirm that I got a few points right before I get started:
- Recovery is totally independent from the ROM itself, right? So I can flash ClockWorkMod Recovery only, continue to use the stock ROM, but have the additional features of ClockWorkMod available, such as backup, with which I can create a complete backup of the stock ROM. In case I don't like CyanogenMod, I can restore the stock image and be exactly where I left it, Apps, Settings and everything (of course the new Recovery will still be installed.) Is this correct?
- I'm planning to do the following steps (I read about the details, just want to confirm the basics):
x use the Revolutionary way to S-OFF and install new Recovery
x create full image backup of the stock ROM using the new Recovery
x install new ROM (ClockWorkMod)
x if I don't like CM: restore image created before to return to stock
-> This should work, shouldn't it?
- One more: What will happen if the the phone is S-OFF, an alternative Recovery is installed, and a HTC Firmware-Update is attempted? Will this work at all, will it update just the ROM, or will it update the Recovery, too? S-OFF will not be changed back to S-ON, right?
Thanks for your help.
Regards
1. Yes, the recovery is in it's own partition and is independent from the ROM
2. The recovery creates a "snapshot" of your current ROM. So when you restore, it'll be just the way you left it.
3. There's no need to do any HTC Firmware updates after installing a custom ROM (infact, I'm almost 100% sure that it won't work)
As a basic answer yes you go ahead with what you posted.just make sure your hboot version is compatible with revolutionary 1st etc etc.
As for HTC firmware update question,if your talking about the over the air updates I'm not sure but I think it would update your hboot thus reverting back to s-on status again so best not accept it if you do get one (turn off in settings)
Edit : ninja'd lol
Sent from my HTC Wildfire using XDA App
slymobi said:
As a basic answer yes you go ahead with what you posted.just make sure your hboot version is compatible with revolutionary 1st etc etc.
Click to expand...
Click to collapse
Yes, of course.
As for HTC firmware update question,if your talking about the over the air updates [...]
Click to expand...
Click to collapse
No, the manual ones you can download directly from HTC and install via USB. My understanding was that this would kill everything flashable, including radio and recovery. It would be reassuring to have a worst-case way to go back to stock in case the image-restore fails for whatever reason.
150d said:
Yes, of course.
No, the manual ones you can download directly from HTC and install via USB. My understanding was that this would kill everything flashable, including radio and recovery. It would be reassuring to have a worst-case way to go back to stock in case the image-restore fails for whatever reason.
Click to expand...
Click to collapse
Ah sorry never dealt with any firmware updates. There are ruu.exe to help get back to stock if something goes wrong I think.
Sent from my HTC Wildfire using XDA App
You can go completely back to stock, s-on and all but believe me once you have cwm installed there really is no point unless its for warranty reasons, backup fails are rare with the latest recoveries + if it does fail with your first backup you can always post here and we will explain how to extract a stock Rom from an ruu to put things back to how they where before or you can flash a custom sense Rom and modify it to your liking.
Sent from my HTC Wildfire using xda premium
Scratch0805 said:
You can go completely back to stock, s-on and all
Click to expand...
Click to collapse
That's great.
[...] but believe me once you have cwm installed there really is no point unless its for warranty reasons[...]
Click to expand...
Click to collapse
Yea, exactly. I'm a little on the paranoid side, I know... ;-)
Ok, I'm on my way now. I've performed the "Revolutionary" S-OFF and am now running "Revolutionary CWM v4.0.1.4". Is this an out-of-date version?
I've read about ROM-Manager being able to auto-check for and flash a new Clockworks Recovery, but I've also read that ROM-Manager needs root. I have not yet flashed a new ROM, so I assume that I'm not yet rooted, am I? Can I find a ZIP of CWM that I can directly flash from the SD-card?
Does the CWM-version I'm running have any effect on the "quality" of the image backup? In other words, if I create a backup now, will I be able to restore it later running a different version of CWM?
The "different version backup restore" is a bit wonky and won't always work.
To flash a different recovery from the SD card do this:
1. Place this file on your SD card (Not in any folders!): http://www.multiupload.com/74EW2VPNHL
2. Boot into the bootloader
3. Wait a bit and then it should prompt you to update
4. Click the volume+ key to update
5. Remove SD card
6. Boot into the new recovery and insert the SD card
7. Go under mounts and select Mount USB storage
8. Delete the PCIMG file from your computer
nejc121 said:
1. Place this file on your SD card (Not in any folders!): http://www.multiupload.com/74EW2VPNHL
Click to expand...
Click to collapse
I tried to, but I couldn't use the link. The whole domain seems to be down - maybe another holy crusade of Big Content, who knows. They sure leave fans in their wake, don't they.
Since you indicated that updating would be ok for the wildfire I went to http://www.clockworkmod.com/rommanager and downloaded the file recovery-clockwork-5.0.2.0-buzz.zip.
However, I'm not sure how to handle it: If I put it on the card under this name, nothing happens on bootloader-start. In recovery, I can select the file and install it, and then I immidiatly get a newly colored menu with the new CWM version 5.something. However, once I restart, the old CWM (v4.x) is there again.
I assume I need to use a magic filename so that the bootloader performs the update, not the (already running) recovery. Right?
**EDIT: Ah, disregard. I believe I found the answer myself.
Do you have fastboot?
If you do I can give you the recovery.img I'm using, which you can flash via fastboot.
Yes, fastboot is available.
Thank you.
Okay, here's how you flash a recovery via fastboot.
1. Extract the .zip I attached to the location where you fastboot is
2. Reboot phone in the bootloader
3. Select fastboot and attach USB cable
4. Open up the command prompt and type in "cd [location of fastboot]
5. Type in "fastboot flash recovery recovery.img"
6. You're done
Oh and by [location of fastboot] I mean that you type in the location of fastboot.
Wow - this was fun. There was something really curious going on with my device: Whatever I tried, no "official" way worked to modify CWM v4 to v5. In every case, the menu of the new version showed up and was usable, but was gone again after restart. After the file-on-card method got me nowhere (file was not recognized), I tried the high road and installed ROM-Manager. This complained about missing su. So I installed su. After that ROM-Manager downloaded CWM v5 and put it onto the card (into a file named update.zip - ahh... ) On restart, the CWM-install-screen came up, then the v5 menu.
And after restart, it was gone again. Even ROM-Manager was confused: He showed v5 as "installed", when in fact it was still v4. ;-)
So finally I downloaded the Android SDK (to get fastboot.exe) and performed the flash as you suggested in the first place. And it worked. First try, without hitch, permanently.
Thank you very much for your help!
Regards
The problem with ROM Manager's version is that it's only temporary and can only be accessed from the ROM Manager itself

[RECOVERY] [OFFICIAL] TWRP 2.2.2.1 for Acer Iconia Tab A100

Teamwin Recovery Project for A100 version 2.2.2.1​ -godmachine81 release-​
SOURCES: Available via Github
Download and Install via the official supported method by TWRP
Install Goo Manager app from Play Store, Open Goo Manager, In the Menu in top right corner go to "Install OpenRecovery Script" Follow Instructions On screen
Download Automated Installer (Windows / Linux):
Linux Installer - 2.2.2.1
Windows Installer - 2.2.2.1
Download IMG:
TWRP v2.2.2.1 main mirror
Download Flashable Zip: (Upgrade Only)
TWRP 2.2.2.1 Flashable Upgrade
Updated TWRP release features:
Uses a custom recovery kernel based off of my v1.5 standard kernel with most unneeded features taken out, i.e. governors, schedulers, networking, misc devices, and most things not needed for recovery operations
Kernel and TWRP includes patches aimed at brick prevention
Resolution is set at native 1024x600
Very fast actions and touch response
Backward compatibility with previous releases of TWRP
Compatibility with all Ice Cream Sandwhich and Jelly Bean ROMs for the A100(HoneyComb should be compatible too, however currently untested)
All previous features from TWRP that you may be familiar with are included
Mount Point Information:
External Storage - mountpoint= /external_sdcard
Internal Storage - mountpoint = /sdcard
Instructions:
Automated Installation (Windows/Linux):
Most importantly you need to have all drivers required for adb and fastboot working on your OS, this shouldn't be a concern for linux users, however it may be for Windows users as it is picky about adb drivers.
Download the above Automated Install .zip file for your operating system
Extract the contents of the Zip to a location on your PC's hard drive
Change to the extracted directory's contents.
Run the installer; On windows you may just double click the install-windows.bat file, on linux you need to run the install-linux.sh script
example linux installation commands:
Code:
cd a100_twrp_installer_linux
Code:
bash ./install-linux.sh
Read the on screen information of the progress. If you get any errors you will need to resolve the issue or try one of the following alternative install methods.
If you need more detailed installation instructions please read the INSTALL file included inside the .zip
Manual installation:
Download the .img file for the recovery
Connect your A100 device to USB on your PC
While your A100 is booted in either Android or Recovery just enter the following into your PCs command prompt/shell:
Code:
adb reboot bootloader
Now flash the image - at the command prompt/shell enter:
Code:
fastboot flash recovery openrecovery-twrp-2.2.2.1-a100.img
Reboot the device - again from the command prompt/shell:
Code:
fastboot reboot
Enter Recovery mode - While tablet shuts off, hold the Vol - (down) button until you see the screen saying "loading recovery kernel"
Checkout the new TWRP build and enjoy!
Flashable Upgrade Instructions: (flash just like you would any other .zip, but here are instructions anyway)
Download the Flashable ZIP above
Save to a location on your tablets internal or external memory
Boot to recovery
Choose the file a100_twrp_upgrade_2.2.2.1.zip in the install menu
Swipe to install
Wait and DO NOT Disconnect your A100!
When finished, go back to Main menu - choose Reboot - and Reboot Recovery
Enjoy the Official 2.2.2.1 TWRP Release!
If you would like to help out with the continuance of my kernel development and other goodies for your Acer Iconia Tab please consider a small donation to help out with bills, baby formula, wipes, diapers, etc. All donations are very appreciated by my family and I! Thanks
​
.....I was gonna mention some things about your brick stuff, but I think I'll save it for off forum.
On topic: its about time we twrp users got some loving, thanks for taking the time to put this together for us!
Tapatalked from my A100 - Jellytime X B6
pio_masaki said:
.....I was gonna mention some things about your brick stuff, but I think I'll save it for off forum.
On topic: its about time we twrp users got some loving, thanks for taking the time to put this together for us!
Tapatalked from my A100 - Jellytime X B6
Click to expand...
Click to collapse
And don't forget that i forgot the download link!! lol **fixed haha
Broken links, so you can correct it.
Fransis88 said:
Broken links, so you can correct it.
Click to expand...
Click to collapse
Thanks francis88, i just tested them on my end again (btw the hosting server is remote from me) it worked for me, so maybe you should check if you have an adblocker or some kind of ipfilter going on? possibly the host was having issues too, but the links works for me at the moment. tested both github sources and the download link to the img. Thanks again
*Edit: Please keep in mind I am using androidfilehost's beta site and they are doing quiet a bit of changes to the site lately trying migrate users from the original site over to the new, and once they get everything settled in and the 'beta' goes away everything should straighten back up. I really like the services at 'androidfilehost' and the owner is really great at working with devs, so please be patient as they continue to upgrade their servers to bring us superb file hosting services. If a link appears to be broken, please wait a few minutes and try again, if the link is down for a long period of time please contact me in PM so that the thread stays for discussion about the TWRP Recovery. Sorry and thanks everyone
linuxsociety said:
Thanks francis88, i just tested them on my end again (btw the hosting server is remote from me) it worked for me, so maybe you should check if you have an adblocker or some kind of ipfilter going on? possibly the host was having issues too, but the links works for me at the moment. tested both github sources and the download link to the img. Thanks again
*Edit: Please keep in mind I am using androidfilehost's beta site and they are doing quiet a bit of changes to the site lately trying migrate users from the original site over to the new, and once they get everything settled in and the 'beta' goes away everything should straighten back up. I really like the services at 'androidfilehost' and the owner is really great at working with devs, so please be patient as they continue to upgrade their servers to bring us superb file hosting services. If a link appears to be broken, please wait a few minutes and try again, if the link is down for a long period of time please contact me in PM so that the thread stays for discussion about the TWRP Recovery. Sorry and thanks everyone
Click to expand...
Click to collapse
Perfect, i have been able to download it. i had a very bad experience with CWRP, now I only use TWRP apart from the fact that their options seem to me much more practical.
Fransis88 said:
Perfect, i have been able to download it. i had a very bad experience with CWRP, now I only use TWRP apart from the fact that their options seem to me much more practical.
Click to expand...
Click to collapse
So let me know how you like it. Also if you happen to be a linux user, I have wrote an automated installer script for linux, Xbow59 is currently writing a windows batch script for installation, I currently have the Linux installation working though if you'd like to test/try it out just let me know. Windows users can look forward to an automated solution within a day or so
help :/........ i am on stock rooted ics. i just unlocked the bootloader sucsessfully and went to flash this. flashed the recovery. and when i try to boot into recovery i get the dead android guy with an ! in a triangle above him......... should i flash recovery again or try to boot into recovery again? i just dont want to mess anything up.
edit: im just scared its trying to update a stock package. i had an update a couple days ago and tryed to update but it failed since i deleted a bunch of bloat, no problem. but i dont know where it downloaded and if its still there trying to install.
nim.whit said:
help :/........ i am on stock rooted ics. i just unlocked the bootloader sucsessfully and went to flash this. flashed the recovery. and when i try to boot into recovery i get the dead android guy with an ! in a triangle above him......... should i flash recovery again or try to boot into recovery again? i just dont want to mess anything up.
Click to expand...
Click to collapse
By unlocking the bootloader successfully, what exactly did you do? If you flashed the btl100 file to the device that's not successfully unlocking, in fact don't touch that 100 file again. Hopefully you followed the guide and used the A200 bootloader unlock method. If you followed that guide though you wouldn't be getting the dead android looking guy. Be careful with this stuff, can easily brick!
linuxsociety said:
By unlocking the bootloader successfully, what exactly did you do? If you flashed the btl100 file to the device that's not successfully unlocking, in fact don't touch that 100 file again. Hopefully you followed the guide and used the A200 bootloader unlock method. If you followed that guide though you wouldn't be getting the dead android looking guy. Be careful with this stuff, can easily brick!
Click to expand...
Click to collapse
i used that method (only one i know) and i got the distotrted green acer logos and it says its unlocked. after i followed the steps to install twrp and it went smoothly. until i tryed booting into recovery. should i try to boot into recovery again? ive rebooted a few times so im still safe if i have to power off. OR should i try to reinstall twrp and follow the guide again. because i am CERTAIN i am unlocked. before i had to send in for repairs i had it unlocked but of course they relocked it.
(btw im not getting angry or smart assy with you haha,if it seems that way i dont mean it to come out that way)
nim.whit said:
help :/........ i am on stock rooted ics. i just unlocked the bootloader sucsessfully and went to flash this. flashed the recovery. and when i try to boot into recovery i get the dead android guy with an ! in a triangle above him......... should i flash recovery again or try to boot into recovery again? i just dont want to mess anything up.
edit: im just scared its trying to update a stock package. i had an update a couple days ago and tryed to update but it failed since i deleted a bunch of bloat, no problem. but i dont know where it downloaded and if its still there trying to install.
Click to expand...
Click to collapse
Delete or rename /system/etc/install-recovery.sh then install twrp again.
its overwriting your custom recovery every boot.
Tapatalked from my A100 - Jellytime X B6
nim.whit said:
i used that method (only one i know) and i got the distotrted green acer logos and it says its unlocked. after i followed the steps to install twrp and it went smoothly. until i tryed booting into recovery. should i try to boot into recovery again? ive rebooted a few times so im still safe if i have to power off. OR should i try to reinstall twrp and follow the guide again. because i am CERTAIN i am unlocked. before i had to send in for repairs i had it unlocked but of course they relocked it.
(btw im not getting angry or smart assy with you haha,if it seems that way i dont mean it to come out that way)
Click to expand...
Click to collapse
yep what pio said:
pio_masaki said:
Delete or rename /system/etc/install-recovery.sh then install twrp again.
its overwriting your custom recovery every boot.
Tapatalked from my A100 - Jellytime X B6
Click to expand...
Click to collapse
I had forgot all about this, even though it is in my unreleased linux auto installer. If by chance you are using linux, I have an installer that will do this all for you the right way, I just haven't posted it yet because I don't have the windows installer fixed
you can either download the linux installer git repo and just extract it to a directory named twrp_install or similar; just run sudo bash ./install-linux.sh after you are in the install directory. https://github.com/godmachine81/Acer-A100-TWRP-Installer/zipball/linux <<current linux installer for a100 twrp
Or you can clone the repo
Code:
git clone https://github.com/godmachine81/Acer-A100-TWRP-Installer.git
then checkout the linux branch:
Code:
git checkout linux
then install:
Code:
sudo bash ./install-linux.sh
The git method requires you have git installed, you will probably just want to install from the zipball method if you don't already have git
pio_masaki said:
Delete or rename /system/etc/install-recovery.sh then install twrp again.
its overwriting your custom recovery every boot.
Tapatalked from my A100 - Jellytime X B6
Click to expand...
Click to collapse
aahhhhhh. thought it was something of that nature. now will i have to delete/rename and reflash twrp every time i need to flash something? or will it stick once i sucsesfully flash it?
will report if it works in a few seconds
edit: noobness showed there. haha thats a script to reinstall recovery at boot so once i delete it it wont reflash stock recovery right?
edit edit: nope, im not on linux (yet) my computer is a mess of three harddrives and messed up registrys and unofficial windows 7 haha. once i buy a copy of windows 7 its a full wipe and partitioning for a windows/linux dualboot
EDIT EDIT EDIT: SUCCESS now i flash linux's kernel
Thanks for the help you guys. once i get some money from the boss man i will gladly donate a little something something for the cause
nim.whit said:
aahhhhhh. thought it was something of that nature. now will i have to delete/rename and reflash twrp every time i need to flash something? or will it stick once i sucsesfully flash it?
will report if it works in a few seconds
edit: noobness showed there. haha thats a script to reinstall recovery at boot so once i delete it it wont reflash stock recovery right?
edit edit: nope, im not on linux (yet) my computer is a mess of three harddrives and messed up registrys and unofficial windows 7 haha. once i buy a copy of windows 7 its a full wipe and partitioning for a windows/linux dualboot
EDIT EDIT EDIT: SUCCESS now i flash linux's kernel
Thanks for the help you guys. once i get some money from the boss man i will gladly donate a little something something for the cause
Click to expand...
Click to collapse
Once that's removed or renamed it will stop, one time deal.
Tapatalked from my A100 - Jellytime X B6
Also I noticed you mentioning that you are using a stock rom, you might want to talk to pio_masaki about this; but to my understanding the stock roms from Acer are not suppose to be flashed from custom recovery. I have read different things on this, however I haven't ever attempted to do such, from what I can tell doing this can or will brick your tablet by overwriting your bootloader and failing to install android, giving you no way to get to recovery nor android.. Might be something you want to discuss with him sometime.
linuxsociety said:
Also I noticed you mentioning that you are using a stock rom, you might want to talk to pio_masaki about this; but to my understanding the stock roms from Acer are not suppose to be flashed from custom recovery. I have read different things on this, however I haven't ever attempted to do such, from what I can tell doing this can or will brick your tablet by overwriting your bootloader and failing to install android, giving you no way to get to recovery nor android.. Might be something you want to discuss with him sometime.
Click to expand...
Click to collapse
In your kernel thread he mentioned staying on stock for stability, so I don't think he'll be flashing off stock anyways. Not yet anyways....
Restoring stock works as it leaves the boot loader alone.
Tapatalked from my A100 - Kuroikaze B3
pio_masaki said:
In your kernel thread he mentioned staying on stock for stability, so I don't think he'll be flashing off stock anyways. Not yet anyways....
Restoring stock works as it leaves the boot loader alone.
Tapatalked from my A100 - Kuroikaze B3
Click to expand...
Click to collapse
Thanks, just trying to look out for these newcomers - however I'm still a bit confused at which causes the brick. The way I first interpreted it, it was flashing any Acer packaged update.zip from a custom recovery that would cause it. Then someone said that only the HC zips would. So to play it safe, I believe I'd double double check as many times as possible before I flashed any .zip from Acer from either twrp or cwm if it was me. Wish there was some clarity though on which Acer zips are SAFE and which ones are BRICKs -n- a Zip lol
linuxsociety said:
Thanks, just trying to look out for these newcomers - however I'm still a bit confused at which causes the brick. The way I first interpreted it, it was flashing any Acer packaged update.zip from a custom recovery that would cause it. Then someone said that only the HC zips would. So to play it safe, I believe I'd double double check as many times as possible before I flashed any .zip from Acer from either twrp or cwm if it was me. Wish there was some clarity though on which Acer zips are SAFE and which ones are BRICKs -n- a Zip lol
Click to expand...
Click to collapse
The ics Acer zips are known brickers but it happens for a reason I'm not very clear on. HC will also brick it.
Basically there's a chance it will run the zip, attempt to flash everything, however for some reason it will fail to flash system or boot correctly, but does replace the bootloader. What I'm not clear on is why it fails on system or boot but succeeds on bootloader, or why recovery doesn't error flashing it.
Once this situation occurs you get locked out of both recovery and system by the bootloader, no adb or fastboot access to correct it.
Using the information I've gathered on this I've been working on a method to restore to stock if needed, but its going slow as I have to triple check everything before I even test it. Its a long and annoying process but should result in a 100% factory stock system.
Tapatalked from my Galaxy S II.
Installed and working perfectly!
Fransis88 said:
Installed and working perfectly!
Click to expand...
Click to collapse
Great Francis88, mind I ask which method of installation you chose?

Cannot access recovery after attempted TWRP update, noob to HTC Devices

I've got an HTC One M9 (Rogers) that I've rooted and installed CM13 (13.0-20160221-nightly-himaul). I'm reasonably experienced with custom ROMs and such having played with all of this stuff on several Samsung devices (Captivate, Galaxy Nexus, SGS3), but this is my first go on an HTC device and first time running TWRP as opposed to Clockworkmod. I attempted to update my TWRP from 2.8.4 to 3.0.0-2 by booting to recovery. Not sure how and where I went wrong in that process but I can no longer boot to recovery, the phone starts up just fine and is usable. I can still access download mode and the bootloader, device is S-on (and has never been s-off). I have since attempted to reinstall TWRP via ADB commands as per the below post. The flash seems to take, no errors but still I'm unable to access recovery. I'm at somewhat of a loss as to what if anything I can try next.
http://forum.xda-developers.com/one-m9/general/guide-root-install-twrp-htc-one-m9-t3061133
the0f said:
I've got an HTC One M9 (Rogers) that I've rooted and installed CM13 (13.0-20160221-nightly-himaul). I'm reasonably experienced with custom ROMs and such having played with all of this stuff on several Samsung devices (Captivate, Galaxy Nexus, SGS3), but this is my first go on an HTC device and first time running TWRP as opposed to Clockworkmod. I attempted to update my TWRP from 2.8.4 to 3.0.0-2 by booting to recovery. Not sure how and where I went wrong in that process but I can no longer boot to recovery, the phone starts up just fine and is usable. I can still access download mode and the bootloader, device is S-on (and has never been s-off). I have since attempted to reinstall TWRP via ADB commands as per the below post. The flash seems to take, no errors but still I'm unable to access recovery. I'm at somewhat of a loss as to what if anything I can try next.
http://forum.xda-developers.com/one-m9/general/guide-root-install-twrp-htc-one-m9-t3061133
Click to expand...
Click to collapse
Are you running 3.x firmware? TWRP 3.0+ only works on firmware 3.x (i.e., the firmware that comes with Marshmallow). Flash TWRP 2.8x using fastboot and it should work just fine.
efrant said:
Are you running 3.x firmware? TWRP 3.0+ only works on firmware 3.x (i.e., the firmware that comes with Marshmallow). Flash TWRP 2.8x using fastboot and it should work just fine.
Click to expand...
Click to collapse
You sir are my hero, that definitely worked. So now to update that firmware so that I can update everything else. By chance do you know of a guide on how to update to that newer firmware version?
the0f said:
You sir are my hero, that definitely worked. So now to update that firmware so that I can update everything else. By chance do you know of a guide on how to update to that newer firmware version?
Click to expand...
Click to collapse
The only way I know how to do it with S-ON is to restore your device to stock (i.e., the version of stock before you flashed CM), take the OTA update, then flash the ROM you want.
efrant said:
The only way I know how to do it with S-ON is to restore your device to stock (i.e., the version of stock before you flashed CM), take the OTA update, then flash the ROM you want.
Click to expand...
Click to collapse
Sorry to be a bother and ask for any form of hand holding, but any idea where I can source the files for the return to stock? Currently have 2.11.631.2 on there (checked in the bootloader). Either that or a way to go S-OFF, I've been unable to find a guide on how to accomplish this without sunshine, which won't work on Cyanogenmod. If that required flashing even to something more similar to stock (IE Android Revolution) that's not the end of the world. Just kind of at a loss as to how to go about that process from where I am now.
the0f said:
Sorry to be a bother and ask for any form of hand holding, but any idea where I can source the files for the return to stock? Currently have 2.11.631.2 on there (checked in the bootloader). Either that or a way to go S-OFF, I've been unable to find a guide on how to accomplish this without sunshine, which won't work on Cyanogenmod. If that required flashing even to something more similar to stock (IE Android Revolution) that's not the end of the world. Just kind of at a loss as to how to go about that process from where I am now.
Click to expand...
Click to collapse
1) Make sure you have an sdcard formatted exfat in your device.
2) Boot into TWRP and back up your boot image to the sdcard. (You are doing this to get TWRP to create the proper directory structure.)
3) Find your back up that you just created and delete the files in the folder, i.e., the boot image and the md5 file.
4) Make sure TWRP has the option to keep system read-only checked (in the mounts menu).
5) Go here and download the three files (boot, recovery, system_image) for 2.11.631.2 and place them in the folder on your sdcard mentioned in point #3 above.
6) Restore the files using TWRP and reboot your device into Android.
7) You'll get an OTA notification. Accept it and update your device. (It'll take a while and reboot multiple times.)
8) Once updated, you'll get a second OTA notification to update you to Marshmallow. Accept it and update your device. (It'll take a while and reboot multiple times.)
9) Once updated, you can go ahead and flash TWRP 3.0+ and do what you want.
http://forum.xda-developers.com/one-m9/general/guide-return-to-stock-canadian-htc-one-t3108236
efrant said:
1) Make sure you have an sdcard formatted exfat in your device.
2) Boot into TWRP and back up your boot image to the sdcard. (You are doing this to get TWRP to create the proper directory structure.)
3) Find your back up that you just created and delete the files in the folder, i.e., the boot image and the md5 file.
4) Make sure TWRP has the option to keep system read-only checked (in the mounts menu).
5) Go here and download the three files (boot, recovery, system_image) for 2.11.631.2 and place them in the folder on your sdcard mentioned in point #3 above.
6) Restore the files using TWRP and reboot your device into Android.
7) You'll get an OTA notification. Accept it and update your device. (It'll take a while and reboot multiple times.)
8) Once updated, you'll get a second OTA notification to update you to Marshmallow. Accept it and update your device. (It'll take a while and reboot multiple times.)
9) Once updated, you can go ahead and flash TWRP 3.0+ and do what you want.
http://forum.xda-developers.com/one-m9/general/guide-return-to-stock-canadian-htc-one-t3108236
Click to expand...
Click to collapse
Thank you again sir, I'll give that a try this evening when I get back home. The help and the hand holding is very much appreciated. I thought that I knew a fair bit about android phones and custom ROMs from my time with my old Samsung devices, and have had to do a lot of learning when it's come to the One M9. Never had a device with the S-ON feature before and have had a lot of trouble trying to find info on what I need to do. I did find that forum post you linked, but wasn't sure if that applied to my device or not. Again VERY much appreciated.
Yup, 6.0 stock is installed and working, TWRP 3.0.0-2 installed and working as well. This time took a system backup and stored it in a safe place (as I expect much the same trouble when Android N or any other major update happens). Thank you again for all of your assistance in getting my phone fixed and updated.

NEED HELP

I have a brand new Pixel XL from Verizon that I received today and was successful in unlocking. However, I tried to root and now I am stuck on bootloop. I cannot post in DEVELOPMENT because I haven't posted here in years (haven't had ANDROID in a while). Can anyone help? I am able to access via fastboot (I believe) but I must be flashing the wrong images. I don't want to brick this nice new day-old device. I have been at it for 5 hours via research on my own, but now I am looking for someone that can help me via P.M. or what it may take. I really want to get back to enjoying this device! Thanks in advance!
bdsuser said:
I have a brand new Pixel XL from Verizon that I received today and was successful in unlocking. However, I tried to root and now I am stuck on bootloop. I cannot post in DEVELOPMENT because I haven't posted here in years (haven't had ANDROID in a while). Can anyone help? I am able to access via fastboot (I believe) but I must be flashing the wrong images. I don't want to brick this nice new day-old device. I have been at it for 5 hours via research on my own, but now I am looking for someone that can help me via P.M. or what it may take. I really want to get back to enjoying this device! Thanks in advance!
Click to expand...
Click to collapse
Read the third post in the thread below to get set up and back to stock. Then we will work on root. If you tried to root and you bootlooped it then you used the wrong​ SU.
https://forum.xda-developers.com/pixel/help/stupidly-bootloop-help-t3554242
1. Download a ROM. A stock version is probably in the forums somewhere if that's what you want.
2. Download TWRP image and zip from the TWRP thread.
3. Download SuperSU from the SuperSU thread.
4. Download a vendor image. There's no "official" vendor image thread AFAIK, but you can grab one from the Pure Nexus rom thread. NMF26V is compatible with all 7.1.1 ROMs & stock.
Now you have two options:
Fast: Put the ROM, TWRP(zip only), SuperSU and vendor image on USB flash drive, then connect the USB 3 to USB C adapter to your flash drive. Don't connect it to the phone yet. An external HDD/SSD should also work if that's all you've got.
Slow: While in TWRP(Instructions below) push the ROM, TWRP(zip only), SuperSU and vendor image files to your phone through ADB with "adb push C:\file_path\ /sdcard/" sans quotes. You will need to do this for each file, or alternatively push a folder containing the four files. adb file transfer is very slow.
5. Boot your phone to the bootloader, and connect it to your computer. This can be achieved by holding volume down and power from an off state.
Note: If your device is still bootlooping you won't be able to get to the bootloader. Hold volume up and power until the device shuts off to get out of the bootloop temporarily, then boot to bootloader.
6. In a command window, "fastboot boot twrp.img"
7. Connect your flash drive to your phone if you chose that option, or push the files through adb if you chose that option
8. Flash TWRP zip, ROM and vendor image. STAY IN TWRP
9. Return to TWRP's home screen > advanced > file manager. Scroll down until you see 'fstab.marlin'(in the root '/' directory). Tap on 'fstab.marlin' and delete it. Skipping this step means SuperSU won't install.
10. Flash SuperSU zip, reboot to system and you're done.
SDK
TonikJDK said:
Read the third post in the thread below to get set up and back to stock. Then we will work on root. If you tried to root and you bootlooped it then you used the wrong​ SU.
https://forum.xda-developers.com/pixel/help/stupidly-bootloop-help-t3554242
Click to expand...
Click to collapse
Just thought I'd update you...And I know I sound like I have no idea what I'm doing but traditionally I've never had issues like this But I am trying to get ADB to show the flash-all command. The one I have installed doesn't show that feature so I can't follow the tutorial. If you have a direct link to what I may be missing I would appreciate it otherwise I will update you once I figure it out.
bdsuser said:
Just thought I'd update you...And I know I sound like I have no idea what I'm doing but traditionally I've never had issues like this But I am trying to get ADB to show the flash-all command. The one I have installed doesn't show that feature so I can't follow the tutorial. If you have a direct link to what I may be missing I would appreciate it otherwise I will update you once I figure it out.
Click to expand...
Click to collapse
The link to the proper adb and fastboot are in the post i pointed you to.
Help with root and TWRP
TonikJDK said:
The link to the proper adb and fastboot are in the post i pointed you to.
Click to expand...
Click to collapse
Thanks for your assistance. I now have root installed and I think I'm good except for one thing. I keep thinking TWRP is installed but for some reason when I reboot to bootloader, then select reboot recovery mode, it takes me to android recovery. I am used to recovery taking me to TWRP. I know TWRP works but I feel like I'm temporarily flashing it each time or something. I even installed the twrp app and I see I can flash zips that way, etc, but I wanted to know if you knew how to make the phone boot to TWRP in recovery? Or is that necessary?
bdsuser said:
Thanks for your assistance. I now have root installed and I think I'm good except for one thing. I keep thinking TWRP is installed but for some reason when I reboot to bootloader, then select reboot recovery mode, it takes me to android recovery. I am used to recovery taking me to TWRP. I know TWRP works but I feel like I'm temporarily flashing it each time or something. I even installed the twrp app and I see I can flash zips that way, etc, but I wanted to know if you knew how to make the phone boot to TWRP in recovery? Or is that necessary?
Click to expand...
Click to collapse
I dont do it that way on this phone. TWRP and SU are modifying the same parts of the phone, and there are cases where it could conflict. Rare, not a big deal, but since i don't need TWRP installed i don't.
To install it ypu first boot to it.
Fastboot boot twrpFilename.
Then from within TWRP you install the TWRP zip.
Make sure it is TWRP RC1
All set
Thanks again for your help. I am running pure ROM as I mentioned and I seem to like it. Do you K or if Franco works with Pure or do you have a suggestion on a good rom/kernel? Is there anything else that you can suggest I should be using with the new phone? I remember there used to be tools that you could install that allowed you to customize the system even further but the name escapes me. . Is there anything like that or even a theme tool which is a must have when you are rooted and running custom roms? No big deal if not. Very happy with where I stand now. Really appreciate you getting me back up and running!
You are most welcome. I don't ROM so I don't know what kernels work with what roms for sure. But my understanding is that they are all pretty universal. I run stock with Franco.
Other than that i dont mod much. Ad blocker, black themes and a few adjustments to Franco.
TonikJDK said:
You are most welcome. I don't ROM so I don't know what kernels work with what roms for sure. But my understanding is that they are all pretty universal. I run stock with Franco.
Other than that i dont mod much. Ad blocker, black themes and a few adjustments to Franco.
Click to expand...
Click to collapse
Perfect! Thanks yet again. Have a great remainder of the day!
bdsuser said:
Thanks again for your help. I am running pure ROM as I mentioned and I seem to like it. Do you K or if Franco works with Pure or do you have a suggestion on a good rom/kernel? Is there anything else that you can suggest I should be using with the new phone? I remember there used to be tools that you could install that allowed you to customize the system even further but the name escapes me. . Is there anything like that or even a theme tool which is a must have when you are rooted and running custom roms? No big deal if not. Very happy with where I stand now. Really appreciate you getting me back up and running!
Click to expand...
Click to collapse
Im running pure and elementalx with excellent results.
?Tapped from my pure pixelXl?
have you ever seen an issue where the phone boots to twrp even though everything was working fine? It starts happening if I do a restart. Then no matter what it boots into TWRP unless I wipe again? I believe it's happening after I flash root but I'm going out of my mind with trial and error. Any help would be appreciated.
bdsuser said:
have you ever seen an issue where the phone boots to twrp even though everything was working fine? It starts happening if I do a restart. Then no matter what it boots into TWRP unless I wipe again? I believe it's happening after I flash root but I'm going out of my mind with trial and error. Any help would be appreciated.
Click to expand...
Click to collapse
HELLO!!! I understand any frustrations you may be having, as the pixel devices have changed a good bit for us as far as development. Anyways. I'm just going to throw some knowledge out there, then proceed to help get you up and running!
You couldn't post in the development section because of your post count, but even if you could, it would have been in the wrong section and it would have been removed, or moved to the questions section.
Also, I see someone has pointed it out earlier, but I'll say it again just to make sure everything is clear. The command you were running "fastboot boot TWRP.img" only boots TWRP temporarily. You are suppose to have two files, one IMG file and one zip file. You boot the IMG file, then once you're in TWRP, you flash the zip file, then reboot to recovery and you will have installed TWRP properly.
With root, flashing wrong files or using the outdated root method will cause boot loops. The correct way to root (again already been said) is the get TWRP up and running, delete the fstab file (see earlier post) then flash SuperSU and reboot. Just throwing this out there Incase someone comes across it, if you manage to boot loop your device due to to rooting, you can fastboot flash franco's kernel and it will fix the bootloop (,but you won't have root) this isn't the correct way to fix it, but it will get you back up and running without downloading the large factory image.
***About to edit this post to continue giving more info***
Here is a correct guide and good template to get you running.
start by flashing a clean factory image, then let it boot and get it set up.
Reboot to fastboot, fastboot boot TWRP IMG then flash TWRP zip using the latest versions (RC1 is latest, pm me for more info).
Reboot the phone to recovery to ensure TWRP stuck.
Go-to advanced, file manager in TWRP and find the fstab.marlin file and delete.
Then you can go ahead and flash the latest SuperSU (I use 2.79 sr3) and when it's done reboot to system and verify root.
After rooting you can go ahead and flash a kernel if you want, I use elemental which you can flash in TWRP, but see the kernel instructions prior to flashing.
Reboot and you have a nice stock ROM with root and kernel.
For flashing Roms, kind of follow the same template, most Roms require you to flash part of or the whole latest factory image.
If your on a clean install, go ahead and install TWRP as mentioned above.
Then use TWRP to install whatever ROM you want per ROM developer instructions.
Side note, some Roms replace the TWRP with cwm or stock recovery, so it's always nice to flash the TWRP zip after flashing a ROM.
After flashing ROM, boot to system to make sure all is well, then boot back to recovery and follow instructions above for root/kernel.
As far as the problem you're having now, it usually comes from flashing outdated SuperSU images. Do a search for 2.79 sr3 and use it to root (pm me if you need help)
You might have to start clean one more time, And flash factory image.
noidea24 said:
HELLO!!! I understand any frustrations you may be having, as the pixel devices have changed a good bit for us as far as development. Anyways. I'm just going to throw some knowledge out there, then proceed to help get you up and running!
You couldn't post in the development section because of your post count, but even if you could, it would have been in the wrong section and it would have been removed, or moved to the questions section.
Also, I see someone has pointed it out earlier, but I'll say it again just to make sure everything is clear. The command you were running "fastboot boot TWRP.img" only boots TWRP temporarily. You are suppose to have two files, one IMG file and one zip file. You boot the IMG file, then once you're in TWRP, you flash the zip file, then reboot to recovery and you will have installed TWRP properly.
With root, flashing wrong files or using the outdated root method will cause boot loops. The correct way to root (again already been said) is the get TWRP up and running, delete the fstab file (see earlier post) then flash SuperSU and reboot. Just throwing this out there Incase someone comes across it, if you manage to boot loop your device due to to rooting, you can fastboot flash franco's kernel and it will fix the bootloop (,but you won't have root) this isn't the correct way to fix it, but it will get you back up and running without downloading the large factory image.
***About to edit this post to continue giving more info***
Here is a correct guide and good template to get you running.
start by flashing a clean factory image, then let it boot and get it set up.
Reboot to fastboot, fastboot boot TWRP IMG then flash TWRP zip using the latest versions (RC1 is latest, pm me for more info).
Reboot the phone to recovery to ensure TWRP stuck.
Go-to advanced, file manager in TWRP and find the fstab.marlin file and delete.
Then you can go ahead and flash the latest SuperSU (I use 2.79 sr3) and when it's done reboot to system and verify root.
After rooting you can go ahead and flash a kernel if you want, I use elemental which you can flash in TWRP, but see the kernel instructions prior to flashing.
Reboot and you have a nice stock ROM with root and kernel.
For flashing Roms, kind of follow the same template, most Roms require you to flash part of or the whole latest factory image.
If your on a clean install, go ahead and install TWRP as mentioned above.
Then use TWRP to install whatever ROM you want per ROM developer instructions.
Side note, some Roms replace the TWRP with cwm or stock recovery, so it's always nice to flash the TWRP zip after flashing a ROM.
After flashing ROM, boot to system to make sure all is well, then boot back to recovery and follow instructions above for root/kernel.
As far as the problem you're having now, it usually comes from flashing outdated SuperSU images. Do a search for 2.79 sr3 and use it to root (pm me if you need help)
You might have to start clean one more time, And flash factory image.
Click to expand...
Click to collapse
There is absolutely no need to delete the fstab file anymore. That only needed to be done when TWRP was still alpha 2, and almost three versions of su earlier.
ALL roms replace TWRP with stock recovery unless you are using lineage then you will get Cyanogenmod recovery, so reflashing TWRP before booting into system is a must.
If you are flashing root and or custome kernel and end up in a bootloop, flashing the stock boot.img to both slots via:
'fastboot flash --slot _a boot boot.img'
'fastboot flash --slot _b boot boot.Img'
will fix the issue and you will be able to boot up just fine. Again you will have to reboot into TWRP from the bootloader and reflash the zip. When you are done flashing the boot.img's you might as well just
'Fastboot boot TWRP-file.img'
Then install the zip!

[Q]E988 Boot certification verify

I have kitkat 4.2.2 stockbase, rooted, trying to install cwm but stuck in the secure booting error boot certification verify.
Previously i installed rom manager app and flash the cwm from the app. After reboot to recovery, only stock recovery that showed, then i reboot to system, install freegee in order to flash the cwm but fail as freegee doesnt support gpro kitkat.
After that i install gpro kitkat recovery and flash the cwm from the app, success, reboot to recovery but stuck on the error.
I uninstalled rom manager and freegee, but still no luck to get the flashed cwm recovery,stuck in secure booting error.
Any suggestion or thread reference? Why is very difficult to install custom rom on this device?i plan to install carbon rom :crying:
Thank you in advance.
hotmatua.parulian said:
I have kitkat 4.2.2 stockbase, rooted, trying to install cwm but stuck in the secure booting error boot certification verify.
Previously i installed rom manager app and flash the cwm from the app. After reboot to recovery, only stock recovery that showed, then i reboot to system, install freegee in order to flash the cwm but fail as freegee doesnt support gpro kitkat.
After that i install gpro kitkat recovery and flash the cwm from the app, success, reboot to recovery but stuck on the error.
I uninstalled rom manager and freegee, but still no luck to get the flashed cwm recovery,stuck in secure booting error.
Any suggestion or thread reference? Why is very difficult to install custom rom on this device?i plan to install carbon rom :crying:
Thank you in advance.
Click to expand...
Click to collapse
Start from 4.1.2 stock, root, use freegee to bypass lockdown, flash latest TWRP then flash Lollipop ROMs... There is info about everything on the forums.
ShadySquirrel said:
Start from 4.1.2 stock, root, use freegee to bypass lockdown, flash latest TWRP then flash Lollipop ROMs... There is info about everything on the forums.
Click to expand...
Click to collapse
Thank you very much Shady.. Please be kindly to review steps that i should execute when flashing to Carbon Lollipop with regards to my current state (rooted 4.4.2. stock Kitkat):
Prerequisite:
- LG Flash Tool 2014 installed in PC
- LG United Mobile Driver (i use v3.11.3) installed in PC
- Stock firmware E98810e_00.kdz (Indonesia Jellybean) -- Jellybean stock base is required to cater modem/wakelock issue
- Stock firmware E98820c_00.kdz (Indonesia Kitkat)
- ROM Manager (for current state backup/restore)
- Freegee (to cater LG security issue after success flash)
- Towelroot (to root device after success flash)
- TWRP (for recovery tool after success flash)
- Downloaded ZeKrnl 1.7 Build 11/28 - https://forum.xda-developers.com/optimus-g-pro/development/rom-e980-ze-krnl-1-6-t3255975
- Downloaded ZeKrnl 1.6 - https://forum.xda-developers.com/optimus-g-pro/development/rom-e980-ze-krnl-1-6-t3255975/page4 (to cater camera issue after flashed to Carbon)
1. Flash CWM via ROM Manager
2 Execute Backup Current ROM to sd card via ROM Manager and save copy to PC
3. Backup manual for files, apks, contacts to sd card and save copy to PC
4. Copy ZeKrnl 1.7 zip & ZeKrnl 1.6 zip to sd card
5. Turn off phone, plug usb cable to phone
6. Press & hold Volume keys (Up + Down) then plug the other end of usb into PC to until download mode showned
7. Run LG Flash Tool with administrator privilege
8. Flash E98810e firmware into the device till success
(After Success Flash to Andro 4.1.2 JB):
9. Install towelroot and root the device
10. Install freegee to cater LG security issue
11. Install latest TWRP
12. Reboot into recovery mode
13. wipe system, data, cache, dalvik cache
14. flash ZeKrnl 1.7
--Camera issue
debug.composition. type=dyn --> debug.composition. type=gpu using build prop editor and/or flash ZeKrnl 1.6 kernell
https://forum.xda-developers.com/optimus-g-pro/development/rom-e980-ze-krnl-1-6-t3255975/page8
--Deep Sleep issue
https://forum.xda-developers.com/optimus-g-pro/development/rom-e980-ze-krnl-1-6-t3255975/page10
-- SD Card issue
https://forum.xda-developers.com/optimus-g-pro/development/rom-e980-ze-krnl-1-6-t3255975/page12
-- Kernel parameter tuning sampel
https://forum.xda-developers.com/optimus-g-pro/development/rom-e980-ze-krnl-1-6-t3255975/page14
Btw looks like you are the only person that still active in this thread...really appreciate it...thank you very much
You're complicating it too much, to be honest
Just do it this way:
1. flash stock 4.1.2 and keep it that way
2. root, install Freegee, install initial recovery (twrp, cwm, doesn't mater), update it to TWRP from forums (2.8 version is preferred)
3. you're ready to flash create stock backup and flash roms.
If I remember, all those changes are already implemented in both SlimLP and Carbon. Slim has newer kernel and gpu drivers, and that's it.
So you are saying i just flash the rom as is without any further change?Noted shady...i will inform you the result
ShadySquirrel said:
You're complicating it too much, to be honest
Just do it this way:
1. flash stock 4.1.2 and keep it that way
2. root, install Freegee, install initial recovery (twrp, cwm, doesn't mater), update it to TWRP from forums (2.8 version is preferred)
3. you're ready to flash create stock backup and flash roms.
If I remember, all those changes are already implemented in both SlimLP and Carbon. Slim has newer kernel and gpu drivers, and that's it.
Click to expand...
Click to collapse
Ive tried your suggestion with the following result:
a. Flash to stock 4.1.2 (v10e) : success but then the master file i downloaded is gone
b. Root, install freegee, initial recovery: success
c. Update to twrp 2.8 using twrp manager: success
d. Flash to Carbon: fail, canot enter recovery mode with message secure booting error,boot certification verify
So i just rollback to kitkat stock
hotmatua.parulian said:
Ive tried your suggestion with the following result:
a. Flash to stock 4.1.2 (v10e) : success but then the master file i downloaded is gone
b. Root, install freegee, initial recovery: success
c. Update to twrp 2.8 using twrp manager: success
d. Flash to Carbon: fail, canot enter recovery mode with message secure booting error,boot certification verify
So i just rollback to kitkat stock
Click to expand...
Click to collapse
So, you can't boot TWRP at all? It seems that TWRP you installed isn't lokified. Are you sure you've installed TWRP 2.8? I remember flashing it directly via flashify on my device and it worked.. Also, check TWRP thread for lokified zip, I think someone posted that.
Edit: you see now why almost everyone abandoned this device
ShadySquirrel said:
So, you can't boot TWRP at all? It seems that TWRP you installed isn't lokified. Are you sure you've installed TWRP 2.8? I remember flashing it directly via flashify on my device and it worked.. Also, check TWRP thread for lokified zip, I think someone posted that.
Edit: you see now why almost everyone abandoned this device
Click to expand...
Click to collapse
Yes, i cant boot twrp, i used twrp manager apk,i think its not lokified.
hotmatua.parulian said:
Yes, i cant boot twrp, i used twrp manager apk,i think its not lokified.
Click to expand...
Click to collapse
After installing freegee's twrp, reboot to recovery. Then, it might be OK.
After that, reboot system and use flashify, the free version will do.
You can either choose to download the file or chose from your internal / external memory.
I'm using the latest version TWRP 3.0.2.0.
If it doesn't work at first, go back to start and try again...
g0at1 said:
After installing freegee's twrp, reboot to recovery. Then, it might be OK.
After that, reboot system and use flashify, the free version will do.
You can either choose to download the file or chose from your internal / external memory.
I'm using the latest version TWRP 3.0.2.0.
If it doesn't work at first, go back to start and try again...
Click to expand...
Click to collapse
Thanks for respond, i have to download the jb stockbase again as the file used for lg flash tool is missing, looks like flashtool keep it somewhere...btw, when i use flashtool to flash the jb stock (offline mode), it.doesnt complete 100%, at 99% device was successfully boot and normal but state in flashtool screen is 99% and message to.retry is showned up.
Fyi, after flashed to jb, i cant execute fastboot flash command, the result is waiting for any device, but adb devices command return expected result. Enable debugging setting is already checked also.
Quiet interesting this device...salut to programmers of this device...
hotmatua.parulian said:
Thanks for respond, i have to download the jb stockbase again as the file used for lg flash tool is missing, looks like flashtool keep it somewhere...btw, when i use flashtool to flash the jb stock (offline mode), it.doesnt complete 100%, at 99% device was successfully boot and normal but state in flashtool screen is 99% and message to.retry is showned up.
Fyi, after flashed to jb, i cant execute fastboot flash command, the result is waiting for any device, but adb devices command return expected result. Enable debugging setting is already checked also.
Click to expand...
Click to collapse
G Pro doesn't support fastboot commands (or is really limited in that field, I'm not sure what to say/think), due to some mess LG made. Mine didn't even want to 'adb reboot bootloader', it simply rebooted device back to system, and was pain in the ass for many things because It has custom download mode, it has custom boot sequence, everything is locked down... everything is different from everything else you're used to. Thank God back then a+b OTA system didn't exist, we'd never get any AOSP support not...
Do as g0at1 said - flash TWRP from Freegee, boot it to make sure it works, reboot back to system and flash newer TWRP from Flashify or any other tool like that one. I did have E988 (just Taiwan variant), and never had that much issues, nearly every time it was a straightforward 'flash JB KDZ, root it manually, Freegee, newer TWRP, backup, flash ROM', and trust me, that one was "revived" many times.
In the end, if even that doesn't help, flash CWM from Freegee, and update it with Philz Touch for E980. I think it will support Lollipop ROMs without any issues, just don't ever boot directly into it if you're not ready to mess with dd from recovery mode - always use adb.
hotmatua.parulian said:
Quiet interesting this device...salut to programmers of this device...
Click to expand...
Click to collapse
This device was one of the hardest devices to work with... and I had Note N7000 with bad MMC which nearly bricked five times running unrooted stock firmwares Samsung provided. And Tegra-based Galaxy S2 clone with many hardware and software issues on stock... And many nameless devices with chips made by "big" vendors, like Allwinner, Rockchip etc which got some older CyanogenMod version builds with some or even complete success... And I never, never had that much issues porting stuff to any of these above, as I had with G Pro. Heck, working on a overclocking and underclocking for G Pro took me nearly two months of coding, testing, scratching everything off and starting from the beginning to just get it to some functional level and make it work as intended... and when I look at that code, I still have a feeling that it isn't completed and that some fixes are still necessary. I won't even start with GPU issues, I've spent more time than I'd like to admit on patching sessions.
ShadySquirrel said:
G Pro doesn't support fastboot commands (or is really limited in that field, I'm not sure what to say/think), due to some mess LG made. Mine didn't even want to 'adb reboot bootloader', it simply rebooted device back to system, and was pain in the ass for many things because It has custom download mode, it has custom boot sequence, everything is locked down... everything is different from everything else you're used to. Thank God back then a+b OTA system didn't exist, we'd never get any AOSP support not...
Do as g0at1 said - flash TWRP from Freegee, boot it to make sure it works, reboot back to system and flash newer TWRP from Flashify or any other tool like that one. I did have E988 (just Taiwan variant), and never had that much issues, nearly every time it was a straightforward 'flash JB KDZ, root it manually, Freegee, newer TWRP, backup, flash ROM', and trust me, that one was "revived" many times.
In the end, if even that doesn't help, flash CWM from Freegee, and update it with Philz Touch for E980. I think it will support Lollipop ROMs without any issues, just don't ever boot directly into it if you're not ready to mess with dd from recovery mode - always use adb.
This device was one of the hardest devices to work with... and I had Note N7000 with bad MMC which nearly bricked five times running unrooted stock firmwares Samsung provided. And Tegra-based Galaxy S2 clone with many hardware and software issues on stock... And many nameless devices with chips made by "big" vendors, like Allwinner, Rockchip etc which got some older CyanogenMod version builds with some or even complete success... And I never, never had that much issues porting stuff to any of these above, as I had with G Pro. Heck, working on a overclocking and underclocking for G Pro took me nearly two months of coding, testing, scratching everything off and starting from the beginning to just get it to some functional level and make it work as intended... and when I look at that code, I still have a feeling that it isn't completed and that some fixes are still necessary. I won't even start with GPU issues, I've spent more time than I'd like to admit on patching sessions.
Click to expand...
Click to collapse
:good::good::good::good: salut to you...the true programmer..never quit..yes im agree with you...i had played with nexus 1,2,3 before but never found something like this...
OK then, i will try g0at1 suggestion, hopefully it works... Like you said its only JB, root, freegee, newer twrp, backup, flash custom
Update
I couldnt wait to try again,i cant download the jb stock for a while due to internet quota limitation, so i did this:
1. Flash to stock that i still have v20c 4.4.2
2. Reboot to stock recovery then reboot to system
3. Run roottool.kitkat batch script (found from http://www.gadgetstroop.com), reboot to recovery, sideload installation of root script with result success
4. Reboot to system, run Root Checker to ensure device has been rooted
5. Install cwm recovery with GPro Kitkat Recovery 6.0.4.4 with result success
6. Reboot to cwm recovery success and do nandroid backup
7. Reboot to system, install flashify, download latest twrp official 3.0.2 and flash it using flashify: success
8. Reboot to recovery, now the recovery become twrp
9. Install package Carbon 5.1 unofficial: fail with message "cant install this package on top of incompatible data"
hotmatua.parulian said:
Update
I couldnt wait to try again,i cant download the jb stock for a while due to internet quota limitation, so i did this:
1. Flash to stock that i still have v20c 4.4.2
2. Reboot to stock recovery then reboot to system
3. Run roottool.kitkat batch script (found from http://www.gadgetstroop.com), reboot to recovery, sideload installation of root script with result success
4. Reboot to system, run Root Checker to ensure device has been rooted
5. Install cwm recovery with GPro Kitkat Recovery 6.0.4.4 with result success
6. Reboot to cwm recovery success and do nandroid backup
7. Reboot to system, install flashify, download latest twrp official 3.0.2 and flash it using flashify: success
8. Reboot to recovery, now the recovery become twrp
9. Install package Carbon 5.1 unofficial: fail with message "cant install this package on top of incompatible data"
Click to expand...
Click to collapse
You forgot to wipe system, data and caches.
ShadySquirrel said:
You forgot to wipe system, data and caches.
Click to expand...
Click to collapse
Hehehe,..thats what i thought at 1st place when it comes to fail..so i reboot to system again, reboot to recovery and try again but the result is still the same....cant install on top of icompatible data..
P.S: now downloading your slim lp 5.1 beta unofficial and i want to try it 2morrow...
hotmatua.parulian said:
Hehehe,..thats what i thought at 1st place when it comes to fail..so i reboot to system again, reboot to recovery and try again but the result is still the same....cant install on top of icompatible data..
P.S: now downloading your slim lp 5.1 beta unofficial and i want to try it 2morrow...
Click to expand...
Click to collapse
I use SlimLP for a long time because it's the only one that works smoothly for me. You might not have any trouble flashing it Through the latest TWRP.
Have fun!
g0at1 said:
I use SlimLP for a long time because it's the only one that works smoothly for me. You might not have any trouble flashing it Through the latest TWRP.
Have fun!
Click to expand...
Click to collapse
Finally carbon installed successfully after I repeat the step very carefully including your reminder bout wiping...
Thank you very much, I will consult any bugs I found..
Half Day 1 issue:
- Scrambled screen layout each time booting
- Camera unstable/crash, also with apps camera mx and open camera
- i think batt is draining faster than kitkat stock
- i feel internet via wifi is slower than kitkat stock
- phone call, other person cant hear my voice
Just flashed SlimLP..Gosh its so slim and smooth...thank you very much...there issue bout the camera and scrambled screen each time I reboot the system, which camera apps I should use?

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