Develop Bugs

unable to adb reboot recovery reinstall (unable to reinstall twrp)

since this fone was having this issue i decided to try and restore from a working backup:
http://forum.xda-developers.com/g4/help/unable-to-make-phone-calls-dialer-t3278827
i am starting to think that this fones hardware is broken/defective somehow. the key combo to boot into recovery never works.
its supposed to be power+volume-down but it just boots normally.
power+vol-down/release power for 1 second goes into the erase all data: yes/no screen.
whether using android-5.1 or cyanogenmod, adb devices returns nothing; we tried on both windows and fedora; we enabled developer options/adb debugging/oem unlock.
so to test whether the original os could make fone calls i did a twrp wipe/restore of a previous backup. when it booted up it was very unstable/unusable; took a few minutes to respond to touches sometimes; process system has quit errors; random restarts; ...
no apps could launch so that meant i couldnt use quick boot to reboot recovery. adb and key combos dont work so there was no way to get back into recovery.
i put the fone in download mode (volume-up while plugging in usb) and we used LGUP_8994_DLL_Ver_0_0_3_23.msi/LGUP_Store_Frame_Ver_1_14_3.msi to install H81120i_00_0201.kdz which is the lg version of googles version of android-6.0. and we were able to make a fone call. we wanted to boot into twrp to backup but quick boot said that we are no longer rooted. ironically, adb devices now shows the serial-number of the fone so i did sudo adb reboot recovery but when it rebooted instead of going to twrp it showed a green android with a spinning blue cube thingy and rebooted into lg/google-android-6.0 where i had to sign/register for the first time and all our apps/settings were gone.
we origianlly installed twrp using the send_command.exe command on windows awhile back but it no longer works. we installed LGUnitedMobile_Win_Driver_Ver_3.14.1.exe; i run ports.bat and it tells me that the diag port is on COM5; i run Send_command \\.\COM5; it shows me the linux su prompt: #, but when i type in ENTER, it exits back to the windows-dos prompt (i also tried without first typing ENTER, if i try to run something like ls or whoami, it will display: fail).
do all these models have adb/recovery disabled or is this particular unit fubar in that regard ?
any alternative ways to install twrp/ cyanogenmod ?

It is my understanding according to autoprime's thread that you must reinstall twrp after you install the kdz as it wipes that partition as well.

bbenz3 said:
It is my understanding according to autoprime's thread that you must reinstall twrp after you install the kdz as it wipes that partition as well.
Click to expand...
Click to collapse
thanks, how does one install twrp without using send_command.exe.

D855 Stuck at Boot Screen

So I think I've gone and bricked my LG G3.
After the ROM I was using, cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd) from here, kept freezing 20 seconds after startup, I went to update to cm-13.0-20160325-NIGHTLY-d855 (CM13 March 25th). I booted into recovery (TWRP 2.8.7.0) as usual and went to flash both the ROM's .zip file and an Opengapps .zip file using TWRP's queue feature. However, it appeared to get stuck at a line (unfortunately I don't remember what it said exactly. Something involving patching system, I think), so I pulled the battery. I get the feeling this was a super not good thing to do, as my G3 now sits at the "LG - Life's Good" screen indefinitely. Holding Power+Vol.Down does not boot into Recovery, and neither does holding Vol.Up and plugging into my computer activate Download mode.
I tried to be as thorough as I could with exactly the steps I took, so I'm just hoping someone can give me a few pointers on what I can do.
As I type this I had the phone connected to my computer next to me, and I've suddenly heard the Windows "Device connected" sound and the phone is now showing this in the top right corner, in tiny font:
Code:
[784670] Fastboot mode started
[784820] -- reset --
[784820] -- portchange --
Edit: When this occurred, a device named "Android" appeared under the "Other devices" tab in Windows Device Manager. It's got a yellow warning sign next to the icon, and Properties says that the drivers for the device aren't installed.
Perhaps this is relevant to getting it working again.

First you need the adb drivers for lg g3
Then you need proper partitions, depends what your starting system was, before cm..
then simply reflash them
fastboot flash aboot aboot.img
fastboot flash recovery twrp.img (because you don´t have one)
fastboot flash laf laf.img (this should fix the download mode)
Depending on what the system in original was and what the cm package installed...

bender_007 said:
First you need the adb drivers for lg g3
Then you need proper partitions, depends what your starting system was, before cm..
then simply reflash them
fastboot flash aboot aboot.img
fastboot flash recovery twrp.img (because you don´t have one)
fastboot flash laf laf.img (this should fix the download mode)
Depending on what the system in original was and what the cm package installed...
Click to expand...
Click to collapse
Many thanks for the reply.
By ADB drivers for the LG G3, do you mean the Lg United Mobile Driver? I have version 3.13.2 of them, if that's what they are.
When I input the commands
Code:
adb devices
or
Code:
fastboot devices
nothing appears, so are there different drivers I should look for?
I'm not too sure how to "fix" partitions, either, but I'm guessing it requires ADB/fastboot.
The file aboot.img and laf.img, will I need to find somewhere to download them from?
Again, I appreciate the response.

In case you have the drivers not installed (the "android" device without drivers in device manager), try with "google adb driver" ->
or pdanet
however the lg one should be fine (if not -> try one of the ones I mentioned)

bender_007 said:
In case you have the drivers not installed (the "android" device without drivers in device manager), try with "google adb driver" ->
or pdanet
however the lg one should be fine (if not -> try one of the ones I mentioned)
Click to expand...
Click to collapse
I used PdaNet to install the LG drivers, and inputting the command "fastboot devices" now shows
Code:
? fastboot
Inputting "adb devices" does not show anything, however.
I then attempted to flash a recovery, TWRP version 2.8.7.0 with the command "fastboot flash recovery "recovery.img"". However, the phone's screen showed the following:
Code:
[998960] Error: Command never completed
[998960] Error: Auto CMD12 Error
[998960] Error: Command never completed with errors
[998960] Failed Writing block @ 1
How do I fix the partitions and find the files "aboot.img" and "laf.img"?
Thanks for your help so far, I'm glad that there is progress now.

it has to be fastboot flash recovery recovery.img (where recovery.img is twrp.img, twrp.bin, recovery.img or similiar, without any quotations)
What happens when you try to enter TWRP? Are you doing it right? Hold volume down and power ---- wait for lg logo an release for less than a second and keep holding again.
aboot and laf are downloadable or extractable (from KDZ/TOT) -> use bullghosts kdz/tot extractor

bender_007 said:
it has to be fastboot flash recovery recovery.img (where recovery.img is twrp.img, twrp.bin, recovery.img or similiar, without any quotations)
What happens when you try to enter TWRP? Are you doing it right? Hold volume down and power ---- wait for lg logo an release for less than a second and keep holding again.
aboot and laf are downloadable or extractable (from KDZ/TOT) -> use bullghosts kdz/tot extractor
Click to expand...
Click to collapse
I retried the command fastboot flash recovery recovery.img but it resulted in the same output as before.
I followed the exact instructions to enter TWRP but it just stays at the LG logo screen. I've held Power+Vol.Down for about a minute after quickly releasing it+pressing it again at the LG logo, but it just doesn't do anything.
I've found myself a Lollipop KDZ file. The CyanogenMod I was running, however, ran on Android 6.0 Marshmallow. Will I need a Marshmallow KDZ file instead?

check PM - Private Messages
+check out this drivers(I packaged few of them, there is also lg adb, try the ones)

bender_007 said:
check PM - Private Messages
+check out this drivers(I packaged few of them, there is also lg adb, try the ones)
Click to expand...
Click to collapse
I appreciate the offer to use Teamviewer to help me, but I think it would be best if you typed out some instructions in a reply to this thread so that others with the same issue can refer to here.

Solution
I've found a solution to my issue, at least.
Downloading "recovery.img" from here, putting it in the same folder as fastboot, and then using the command
Code:
fastboot boot recovery.img
booted my phone properly, into cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd).
However this resulted in all data being erased, including internal storage.
After using Flashify to re-flash TWRP (just in case), everything works as it should.

HexManiacSpeck said:
I've found a solution to my issue, at least.
Downloading "recovery.img" from here, putting it in the same folder as fastboot, and then using the command
Code:
fastboot boot recovery.img
booted my phone properly, into cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd).
However this resulted in all data being erased, including internal storage.
After using Flashify to re-flash TWRP (just in case), everything works as it should.
Click to expand...
Click to collapse
Glad you got it working
Regarding teamviewer - it was an exploration mission so I would see how your device behaves, maybe wrong drivers, maybe..100reasons (I certainly would write it in here if there was a better idea on my side)

bender_007 said:
Glad you got it working
Regarding teamviewer - it was an exploration mission so I would see how your device behaves, maybe wrong drivers, maybe..100reasons (I certainly would write it in here if there was a better idea on my side)
Click to expand...
Click to collapse
That's alright, many thanks for your help. I've just heard bad stories regarding Teamviewer and didn't want to risk anything.

HexManiacSpeck said:
That's alright, many thanks for your help. I've just heard bad stories regarding Teamviewer and didn't want to risk anything.
Click to expand...
Click to collapse
No problem, sometimes you have to trust people
There were people who asked for help, installed teamviewer and didn´t gave any control permissions (which is fine). But they were expecting someone is having soo much free time to explain things (which I would if I had time)
cheers, flad you fixed it

Fixed my G3 I was about to send to trash!
HexManiacSpeck said:
I've found a solution to my issue, at least.
Downloading "recovery.img" fromhere, putting it in the same folder as fastboot, and then using the command
Code:
fastboot boot recovery.img
booted my phone properly, into cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd).
However this resulted in all data being erased, including internal storage.
After using Flashify to re-flash TWRP (just in case), everything works as it should.
Click to expand...
Click to collapse
Thanks a million for pointing to this recovery file!
I was also in a situation where all my attempts to flash a recovery were failing due to:
Failed Writing block @ 1
Click to expand...
Click to collapse
The rest of my phone was unusable (no working recovery, no download mode, just the LG logo or this fastboot mode)
I tried several TWRP recovery versions & flavors, but so far, I only successfully reboot in recovery using CyanogenMod recovery file (download.cyanogenmod.org/?device=d855). Though I was not able to do much afterwards apart some adb commands that were not working either.
Code:
dd if=/dev/zero of=/dev/block/mmcblk0p20
dd: /dev/block/mmcblk0p20: write error: I/O error
This recovery img did the trick and I'm now back with a CyanogenMod ROM and a wiped phone.

Bricked my LG k10 430DSY

Hello
My LG k10 430dsy is stuck on a bootloop and I cant boot into recovery and fatboot and download mode, I just get the message "Your device is corrupt. It cant be trusted and may not work proper"
no download mode no recovery and no fastboot mode
how can I fix this? I could use some help please, even if it means reformatting the phone any way possible, thanks.

LG phones are much nonsense
please do not buy LG phones if you are user advanced
All ways are bricked or locked

When you removed battery and loaded it again, did you try holding volume up and connecting using USB cable to PC?

As wizzardsk sais you have to try connect it holding volume up + lg bridge update error recovery.
Or what about hard reset ( http://www.hardreset.info/devices/lg/lg-k10/ )?
Anyways if your phone connects and stays connected for more a second or two you might have a chance just PM me...
What coused the situation if i may ask?

I want to root lg k10 430dsy ando this commands
1. Enable developer options on the lg K10
2. Enable OEM unlocking and USB debugging
3. Copy twrp.img to disk C: /
3. Go to C: / and open command window. Enter: adb reboot bootloader (phone will start in fastboot mode)
4. Once in the fastboot mode enter the command: fastboot boot twrp.img
5. Once inside TWRP press cancel and then slide to allow modifications.
6. Mount System, data and sdcard.
7. Make BOOT-only backup (uncheck all other partitions)
8. Mount MTP
9. Copy BOOT backup from TWRP folder in our SD card (Boot.emmc.win) and rename bootlz4.img
10. Copy to Boot-resources of CARLIV IMAGE KITCHEN
11. Decompress with Carliv
12. Open bootlz4 folder and find the file "boot.img-ramdisk-compress".
13. Edit "boot.img-ramdisk-compress" with notepad ++ and change "lz4" to "gz"
14. Save
15. Recompress bootlz4.img
16. Go to output folder and look for bootlz4xxxxx.img and rename it as bootgz.img
17. Go to TWRP and restart in bootloader mode
18. Write in command window: fastboot flash boot bootgz.img
19. Then write in command window: fastboot boot twrp.img to return to TWRP
I must flash bootgz_0.img in TWRP
by cpatrick3000 method is false
Plese use method gottlasz for root
i can't aging boot twrp because error "larg size" and remove batterry and my device is bricked
I do hard reset not work
flash lg and lg up not work for 430dsy ony work lg Bridge i use lg bridge for flashing firmware but can't because trying to enter download mode and nothing happens, just text "download boot" download mode is bricked too
My LG k10 430dsy is stuck on a bootloop.show logo lg then show message "Your device is corrupt. It cant be trusted and may not work proper"
holding volume up and connecting using USB cable to PC only connecting two seconds then disconnect
and trying to enter download mode and nothing happens, just text "download boot: after five seconds show message :your device is ........." then turn off bootloop
still not found any way to go to fastboot

Device is corrupted
123xdagsm said:
Hello
My LG k10 430dsy is stuck on a bootloop and I cant boot into recovery and fatboot and download mode, I just get the message "Your device is corrupt. It cant be trusted and may not work proper"
no download mode no recovery and no fastboot mode
how can I fix this? I could use some help please, even if it means reformatting the phone any way possible, thanks.
Click to expand...
Click to collapse
We have a same problem bruh I tried to boot on twrp.img after that my k10 shutsdown and when its reboot a notice say (your device is corrupted it cant be trusted and may not work properly) I try to recover but nothing happens its like bootlooping and no fastboot no download boot no recovery WTF. many tutorial on youtube and says boot to qualcom mode but I cannot locate the killer switch inside the k10 main board.

@123xdagsm OP did you actually tried the download mode? i have the same problem at the exactly same phone, the solution for me afaik is rolling back the software, then go for root..

bricked LG K430dsY
bricked my LG K10 trying to root it (430dsY), the only thing I can do is connect the USB and hold it in "firmware update" mode, ... my command prompt with adb and fastboot is non-responsive... loaded TWRP through fastboot and ran rce.img,- twice, following instructions from a youtube.be link (cMipOfeW6B0)
after second flash of rce.img, it busted. yeah, I feel really stupid. I never got to super-user, any help?
I do have a backup image file made with TWRP on phone, (backup.ab) 437MB, anyway to flash the device from command prompt, get device to respond to command prompt?
"...Anyways if your phone connects and stays connected for more a second or two you might have a chance just PM me...
What caused the situation if i may ask?[/QUOTE]
---------- Post added at 06:49 PM ---------- Previous post was at 06:43 PM ----------
bricked my LG K10 trying to root it (430dsY), the only thing I can do is connect the USB and hold it in "firmware update" mode, ... my command prompt with adb and fastboot is non-responsive... loaded TWRP through fastboot and ran rce.img,- twice, following instructions from a youtube.be link (cMipOfeW6B0)
after second flash of rce.img, it busted. yeah, I feel really stupid. I never got to super-user, any help?
I do have a backup image file made with TWRP on phone, (backup.ab) 437MB, anyway to flash the device from command prompt, get device to respond to command prompt?
just trying to get some help...
"...Anyways if your phone connects and stays connected for more a second or two you might have a chance just PM me...
What caused the situation if i may ask?[/QUOTE]
gottlasz said:
As wizzardsk sais you have to try connect it holding volume up + lg bridge update error recovery.
Or what about hard reset ( hardreset.info/devices/lg/lg-k10/)?
Anyways if your phone connects and stays connected for more a second or two you might have a chance just PM me...
What coused the situation if i may ask?
Click to expand...
Click to collapse
---------- Post added at 07:38 PM ---------- Previous post was at 06:49 PM ----------
didn't know about LG Bridge,- yes, downloaded, installed and used the error recovery option while phone was in "update firmware" mode connected to usb... whew. hehe... may try rooting again... or not
curtgriff said:
bricked my LG K10 trying to root it (430dsY), the only thing I can do is connect the USB and hold it in "firmware update" mode, ... my command prompt with adb and fastboot is non-responsive... loaded TWRP through fastboot and ran rce.img,- twice, following instructions from a youtube.be link (cMipOfeW6B0)
after second flash of rce.img, it busted. yeah, I feel really stupid. I never got to super-user, any help?
I do have a backup image file made with TWRP on phone, (backup.ab) 437MB, anyway to flash the device from command prompt, get device to respond to command prompt?
"...Anyways if your phone connects and stays connected for more a second or two you might have a chance just PM me...
What caused the situation if i may ask?
Click to expand...
Click to collapse

rebamontan22 said:
We have a same problem bruh I tried to boot on twrp.img after that my k10 shutsdown and when its reboot a notice say (your device is corrupted it cant be trusted and may not work properly) I try to recover but nothing happens its like bootlooping and no fastboot no download boot no recovery WTF. many tutorial on youtube and says boot to qualcom mode but I cannot locate the killer switch inside the k10 main board.
Click to expand...
Click to collapse
I could not find any way to solve the problem
I sold the phone to the same state, and bought a new phone
Perhaps there is a way!

I have the same problem with my K3. I know this is an old thread, but is there any solution at all?

123xdagsm said:
Hello
My LG k10 430dsy is stuck on a bootloop and I cant boot into recovery and fatboot and download mode, I just get the message "Your device is corrupt. It cant be trusted and may not work proper"
no download mode no recovery and no fastboot mode
how can I fix this? I could use some help please, even if it means reformatting the phone any way possible, thanks.
Click to expand...
Click to collapse
I want to take of heads off for these who makes LG Nokia Samsung phones. I waste lots off money for phone and after 2 month it breaks. Its product what you can not sell afterwards. Somebody needs to die.

lg k430ds your device is corrupt and cannot go to download mode
I have the same problem :crying: with my k430dsy ( k10 )
no download mode like this video www youtube com /watch?v=s_bx9sr6lL8"
pleas if you found the solution send it to me on my gmail
"[email protected]

Hi, I had LG K430DSY and rooted it, with TWRP and Xposed.
The device is corrupted appears when you unlock the bootloader and allow TWRP to modify system.
It must be there if you want root.
I followed this procedure https://forum.xda-developers.com/lg-k10/how-to/friendly-root-method-lg-k8-k10-t3531223
You cant install TWRP permanently so you will need to port your TWRP.
https://forum.xda-developers.com/lg-k10/development/mtk-portable-twrp-porter-t3536123
STEP 1 - Get your phone's KDZ firmware
1. method:
- reboot your phone into download mode (http://www.hardreset.info/devices/lg...download-mode/)
- start LG Bridge, go to software update and chose update error recovery (right bottom corner).
- from here follow kappu's guide to get your .kdz file: https://forum.xda-developers.com/lg-...ridge-t3504497
- you can let lg bridge finish the flashing process, no data will be lost.
2. method:
- download firmware for your device:
k10: https://forum.xda-developers.com/lg-...g-k10-t3457319
k8: https://forum.xda-developers.com/lg-...mware-t3456467
- now you have your kdz however you better do the next step if you are not sure thats the exact firmware your device has
- use lg up (https://forum.xda-developers.com/lg-...ng-lg-t3517839) to flash that firmware on your device (just to make sure you are really using that particular firmware)
- all data will be lost
Now you have your kdz, lets extract the recovery image:
- download lg firmware extractor: https://forum.xda-developers.com/sho....php?t=2600575
- upack it somewhere and put the kdz file into that folder
- run "WindowsLGFirmwareExtract.exe"
- open your kdz file (first open button from above)
- tick the first entry under file name (the .dz file) and click on "Extract KDZ"
- you will get that .dz file extracted in your LGFirmwareExtract folder
- close LG Firmware extractor and open it again
- now open .dz file (second open button from above)
- find your stock recovery image under file name (usually it's "recovery_190464.bin"), tick that entry and click on "Extract DZ"
- your stock recovery image will be extracted in the LGFirmwareExtract folder.
Now you just copy this "recovery_190464.bin" (or whatever it's name is - just make sure it's a .bin file) into the "twrp_port" folder and run "twrp_port.bat"
YOU WILL NOW HAVE YOUR PORTED TWRP RECOVERY as yourTWRP.img
STEP 2 - UNLOCK YOUR BOOTLOADER
- in settings/about phone/software info tap on build number about 7 times unlock developer options
- in settings/developer options tick on "oem unlock" and "usb debugging" and untick "verify apps over usb"
- in settings/security tick on "unknown sources" and untick "verify apps"
- make sure you installed all the drivers for your mobile from lg's site
- set up adb/fasboot https://forum.xda-developers.com/sho....php?t=2588979
- go to the folder it's installed (in my case it's C:/adb - adb.exe and fastboot.exe supposed to be there) hold shift and right click "open cmd here"
- in the command window type "adb devices"
it will start adb services and will print a line like "...lgk350... or ...lgk420... lgk430, etc"
if you can't find your device there check device manager or google how to work things out
normally in device manager, you should find "LGE Mobile USB Serial Port" under Ports
- now reboot to fastboot mode typing the command: "adb reboot bootloader"
your phone should go blank and only print fastboot mode on the bottom of the screen
- check your fastboot connection:
type: "fastboot devices"
- In case you have a working adb and fastboot connection type
"fastboot oem unlock" - the phone will ask you if you really mean it, using the volume and the on/off buttons (twice) you can accept
you will lose all your data!!! and most likely lose warranty as well!!!
however your phone shell restart just fine (you have to manually restart it by taking out the battery or boot into twrp and reboot from there.
There should be some message during boot up that your system is vulnerable from now on.
- after reboot you may want to check if your bootloader is really unlocked:
get back to fastboot and type "fastboot getvar all"
and find the line which says if your bootloader is unlocked (if it's not you may repeat the process)
set up developer settings again:
- in settings/about phone/software info tap on build number about 10 times so you unlcok developer options
- in settings/developer options tick on "oem unlock" and "usb debugging" and untick "verify apps over usb"
- in settings/security tick on "unknown sources" and untick "verify apps"
STEP 3 - ROOTING
- put the recovery image that we ported earlier (e.g "yourTWRP.img") into your ADB folder (like c:\adb - where you opened command prompt earlier)
- Get back to fastboot again and boot to TWRP - type in cmd: "fastboot boot yourTWRP.img" (or whatever your TWRP image's filename is)
- on the first screen of the TWRP it's asking for password to decrypt data - just hit cancel
in case you have no device corrupt message during every boot up follow the next steps
- on the keep system read only? screen of the TWRP let it allow modifications (swipe!)
- reboot to System
you must see the device corrupt message during boot up -> you are ready to go for a root
the rooting part
- download the ramdisk compression exchanger: https://forum.xda-developers.com/app...anger-t3533327 (we need this because SuperSU can only work with gzip compressed ramdisks while we have lz4 compressed ones)
- download latest SuperSU TWRP flashable version: https://forum.xda-developers.com/app...lease-t3452703
- put this (rce_univ.zip) and latest SuperSU (i used v2.79) on your sd card (you need external sd because the internal sd is encrypted in TWRP)
- reboot your device into TWRP (through adb and fastboot as before)
- cancel decrypt data
- don't swipe on system modifying screen just click on "keep read only"
- go to backup, backup your boot image (tick only boot partition /untick the rest/ and select storage as micro sd card) in case anything goes wrong during the rest of the process you can always restore it
- go to install
- select storage and chose micro sd card
- install rce_univ.zip (it will recompress your ramdisk to gzip - so SuperSU can tweak it)
- when it's finished don't wipe or don't reboot! Go back (hit back button button) and install SuperSUxxx.zip
- go back again (without restart or wipe) and install rce.zip again (this will recompress your ramdisk to lz4)
- now you can reboot to system (without any wipe) - it will bootloop a few times, be patient!
If you have any problem with installing rce_univ.zip please post comments to it's thread:
https://forum.xda-developers.com/app...anger-t3533327
Please follow those instructions if you want to Root.
---------- Post added at 09:19 AM ---------- Previous post was at 09:16 AM ----------
123xdagsm said:
Hello
My LG k10 430dsy is stuck on a bootloop and I cant boot into recovery and fatboot and download mode, I just get the message "Your device is corrupt. It cant be trusted and may not work proper"
no download mode no recovery and no fastboot mode
how can I fix this? I could use some help please, even if it means reformatting the phone any way possible, thanks.
Click to expand...
Click to collapse
Use LG Up to unbrick your device.
That's what i used then i had LG K430DSY
Install LG UP, then download the firmware and flash it with LG UP.
Alternatively,
Install LG Bridge, then make sure your device is switched off,
Hold the volume up key then plug in the usb cable to the phone
It will enter download mode.
USB Bridge option to fix recovery error, It will flash new KDZ firmware and your device will be unbricked.

I solved this problem, if you can inter download mode, you can do so.
1. download your model kdz file.
2. download lgup 1.14 and install it
3. download uppercut from this link (then your phone model will be detected by lgup1.14)
https://forum.xda-developers.com/lg-g5/development/uppercut-lgup-loader-g5-variants-t3511295
4. inter download mode (volume up+ connect with usb cable)
5. open lgup 1.14, thick upgrade in process, select your kdz file in file path and start.

Well, now I have the same problem. No way to get into download mode. Lg sucks...
We need to access to emmc and rewrite stock binaries. But there isn't any way to do it at home. We need something like this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
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And connect it to board like this:
Then we can write stock boot/system/recovery etc..
Note: This scheme is for MTK chipsets.

123xdagsm said:
Hello
My LG k10 430dsy is stuck on a bootloop and I cant boot into recovery and fatboot and download mode, I just get the message "Your device is corrupt. It cant be trusted and may not work proper"
no download mode no recovery and no fastboot mode
how can I fix this? I could use some help please, even if it means reformatting the phone any way possible, thanks.
Click to expand...
Click to collapse
take a look on that method https://forum.xda-developers.com/lg-k10/how-to/guide-to-flash-official-firmware-lg-k-t3761728

Let me dig up this old thread real quick
I have same problem, Model LG K10 K430dsE
Phone has bootloop, says it's corrupted and not trusted etc
When i enter download mode it stays for 10s then bootloops again,
PC does not recognize the device but it did before, tried uninstalling/reinstalling LGUP/BRIDGE/USB DRIVERS etc
This happened after i tried to flash twrp.img
If anyone has any suggestion, answer below or reply here
Thread: https://forum.xda-developers.com/t/lg-k10-cannot-launch-twrp-or-download-mode-bootloop.4258773/

fml4days said:
Let me dig up this old thread real quick
I have same problem, Model LG K10 K430dsE
Phone has bootloop, says it's corrupted and not trusted etc
When i enter download mode it stays for 10s then bootloops again,
PC does not recognize the device but it did before, tried uninstalling/reinstalling LGUP/BRIDGE/USB DRIVERS etc
This happened after i tried to flash twrp.img
If anyone has any suggestion, answer below or reply here
Thread: https://forum.xda-developers.com/t/lg-k10-cannot-launch-twrp-or-download-mode-bootloop.4258773/
Click to expand...
Click to collapse
There is no way to fix this. I've had the same and even though I tried to access to emmc directly, I was not unable to solve it. I had sent it to LG for repair and my device was repaired (motherboard changed).

berkantkz said:
There is no way to fix this. I've had the same and even though I tried to access to emmc directly, I was not unable to solve it. I had sent it to LG for repair and my device was repaired (motherboard changed).
Click to expand...
Click to collapse
Thank you for the response bro, i have read many of your posts and im pretty sure this is 100% accurate

fml4days said:
Thank you for the response bro, i have read many of your posts and im pretty sure this is 100% accurate
Click to expand...
Click to collapse
There might be a way for those who has advanced tools to modify/access the stuff on motherboard but since I don't have them, that's the only accurate thing I could say.
Thanks for trusting in me and you're welcome.

XT1676 - Stuck in Unlocked Bootloader, after Wipe Cache(?!)

Some informations at first:
XT1676 Moto G5, Fine Gold, 16GB
(TYPE M2675/ FCC ID: <known>/ SEQ#: <known>)
2017-10-30
Problem: Stuck in unlocked Bootloader
Hi all,
i am stuck on bootloader and cant get out.
On my PC I have "Minimal ADB and Fastboot"(v. 1.4.2.) installed and after i open a command prompt(admin) and type
- "fastboot devices" my phone is listed as <NR> fastboot
so that works as the only positive thing i can say
- "adb reboot", *daemon not running. starting it now on port 5037*
*daemon started successfully*
error: no devices/ emulators found
- "adb reconnect", error: no devices/ emulators found
i am not into the adb commands at all, i am a dummy and i would be so glad if someone could lead me out of my problem.
Maybe a word how i got into there:
1) i installed the minimal adb and fastboot(v1.4.2.)
2) i unlocked the bootloader by doing that over the Motorola UNLOCK Bootloader site
3) then i rooted & Flash Twrp Recovery (twrp-3.1.1-0-cedric)
with "fastboot flash recovery twrp-3.1.1-0-cedric.img"
4) first time entered into twrp recovery and i did the following:
A) a factory wipe-> reboot back to recovery mode->
B) install no-verity-opt-encrypt-5.1-> reboot and let system start before i turn off phone and enter bootloader(vol down+start) again
C) after entering recovery mode again, i install Magisk-v11.6 -> reboot->
D) now everything seemed to work, the system started properly rooted.
E) but then i decided to flash once again the Magisk-v11.6 followed by wipe data/ factory reset cause i wanted to completly do the flashing all over.
(dont ask me why i did it.. i could explain and tell you my intention but well it happened anyway and brought me to where i am stuck now)
but that was on this move not all yet: i also wipe dalvik cache
so after wipedalvik/ cache , since that moment i couldnt access to my SD Card anymore as it simply didnt show up anymore.
after a restart i was my first time in an endless bootloop of that Screen with "Erasing"(, the letters sourrounded by a spectral colored circle)
i had to disconnect the phone from power . also i tried to remove the battery for a day. but it would only get me back into that bootloop and only get me out by removing the battery...
i dont know anymore what happened then when the phone now got stuck in the bootloader instead of the bootloop. But yea, now i am stuck here, appreciating any help :highfive:
more infromation from my bootloader screen:
AP Fastboot Flash Mode(secure)
BLB8.12 (<known>, 2017-04-19 11:00:47)
Baseband <known>
Product/ Variant: cedric XT1676 16GB P5
Serial Number: <known>
CPU: MSM8937
eMMC: <known>
DRAM: <known>
Console [NULL]: null
Tools Mode Config: DISABLED
Battery OK
flashing_unlocked
Software status: Official
Connect USB Data Cable
- When pressing <Start>
Your device has been unlocked and can't be trusted.
to learn more, visit:
motorola,com/ unlockbootloader
ID: bad key
Your device will boot in 5 seconds.
->
bevor the Phone drops back to Bootloader
when pressing <RESTART BOOTLOADER>
it restarts to BOOTLOADER
- When pressing <Start Recovery>
Your device has been unlocked and can't be trusted.
to learn more, visit:
motorola,com/ unlockbootloader
ID: bad key
Your device will boot in 5 seconds.
->
after 10 seconds another screen poops up:
"Erasing", the letters sourrounded by a spectral colored circle for 3 seconds,
bevor the Phone just drops back to Bootloader
(talking about Erasing ..)
- When pressing <POWER OFF>
Power Off works
- When pressing <FACTORY RESET>
Your device has been unlocked and can't be trusted.
to learn more, visit:
motorola,com/ unlockbootloader
ID: bad key
Your device will boot in 5 seconds.
->
bevor the Phone just drops back to Bootloader
- When pressing <BARCODES>
Barcodes are shown
- When pressing <BP TOOLS>
Your device has been unlocked and can't be trusted.
to learn more, visit:
motorola,com/ unlockbootloader
ID: bad key
Your device will boot in 5 seconds.
->
bevor the Phone just drops back to Bootloader
- When pressing <QCOM>
Your device has been unlocked and can't be trusted.
to learn more, visit:
motorola,com/ unlockbootloader
ID: bad key
Your device will boot in 5 seconds.
->
bevor the Phone just drops back to Bootloader
- When pressing <BOOTLOADER LOGS>
Display shows:
AP Fastboot Flash Mode(secure)
Fastboot Reason: UTAG "bootmode" configured as fastboot
When connecting an USC- cable
Transfer Mode: USB Connected
...shows up but i cant get any adb commands to work tho ofc i am a dummy at it...

oh my, i just helped myself by reading my first poste here on the forum from 2016.
i made it now to start twrp by downloading the twrp_cedric_3.1.1-0 once again putting the recovery in my adb folder and type
<fastboot flash recovery twrp.img>
followed by <fastboot reboot-bootloader>
i am curious if i can get going now and if my SD card will be read and if i can get a new flash going...

now back in twrp i go first again to wipe/ factory reset.
now going to reboot, and reboot back into recovery. only gets me back to bootloader from where i can enter twrp manually now(but there is already an indication of the problem i have?)
also before the reboot, it doesnt ask me to install the twrp app anymore where i usually choose "do not install".
now i go to install the <no-verity-opt-encrypt-5.1>, flashing it successfully as it says at the end of the process but there is also some error message in the log before the ...done:
Failed to mount '/data' (invalid argument)
now i thought i should be able to boot the system again but i only get back into the bootloader...
can someone help me how to proceed correctly?
did i miss something to flash?

Techcri said:
now back in twrp i go first again to wipe/ factory reset.
now going to reboot, and reboot back into recovery. only gets me back to bootloader from where i can enter twrp manually now(but there is already an indication of the problem i have?)
also before the reboot, it doesnt ask me to install the twrp app anymore where i usually choose "do not install".
now i go to install the <no-verity-opt-encrypt-5.1>, flashing it successfully as it says at the end of the process but there is also some error message in the log before the ...done:
Failed to mount '/data' (invalid argument)
now i thought i should be able to boot the system again but i only get back into the bootloader...
can someone help me how to proceed correctly?
did i miss something to flash?
Click to expand...
Click to collapse
For failed mount data goto wipe & select format data (option on the right)
Reboot to recovery
For always going into recovery either you don't have a rom installed or read the faq section on my twrp thread as the answer is there

First of all thanks TheFixItMan, that you are behind it and your thread looks really cool and i will immediatly read and try to understand it!
For now i am stuck in the following:
TheFixItMan said:
For failed mount data goto wipe & select format data (option on the right)
Reboot to recoverye
Click to expand...
Click to collapse
i went to "wipe" & "select format data"
the process shows successfully and "...done" but in the log there is a line of red letter:
<Red Letter>"Failed to unmount '/data' ( Device or resource busy)"
<White Letter> You may need to reboot recovery to be able to use / data again.
i went back and to reboot and recovery.
but recovery wouldnt be booted but i get back to the bootloader(maybe that is still an indication of the problem i have here?)
manually entered recovery i did the select format data again but <red letter> line remains.
TheFixItMan said:
For always going into recovery either you don't have a rom installed or read the faq section on my twrp thread as the answer is there
Click to expand...
Click to collapse
i will parallel read your thread now, thx for being behind it solving the questions! :good:

Techcri said:
First of all thanks TheFixItMan, that you are behind it and your thread looks really cool and i will immediatly read and try to understand it!
For now i am stuck in the following:
i went to "wipe" & "select format data"
the process shows successfully and "...done" but in the log there is a line of red letter:
<Red Letter>"Failed to unmount '/data' ( Device or resource busy)"
<White Letter> You may need to reboot recovery to be able to use / data again.
i went back and to reboot and recovery.
but recovery wouldnt be booted but i get back to the bootloader(maybe that is still an indication of the problem i have here?)
manually entered recovery i did the select format data again but <red letter> line remains.
i will parallel read your thread now, thx for being behind it solving the questions! :good:
Click to expand...
Click to collapse
You have to select recovery from the bootloader menu to enter recovery
You can also type in a terminal window whilst phone connected to pc in fastboot
fastboot erase userdata
This will erase all internal data (the same as format data in twrp)

Important Notes For Stock Rom Users
When you first start TWRP it will ask you to swipe to allow modifications - If you do this your stock rom will no longer boot unless you disable dm-verity.
This can be done either by flashing a disable dm-verity zip or by flashing SuperSu zip which will disable it for you
Click to expand...
Click to collapse
ok, stock rom didnt boot so i flashed the "no-verity-opt-encrypt-5.1" .zip
and voila, i could boot the stock again finally! yipie!
but three things i noticed:
1) the boot progress is suspicous / wrong/ stuck at a moment:
"hello" and "moto" i still see and before the letters of moto start spinning around, the screen freezes for like 2-3 seconds and the next ting i see is the red mouth and cameleon and so on
2) i tried to test camera real quick and it says camera is busy
camera unable to start. if this repeats please power off your phone and restart.
(i did already 5 restarts now and still same problem)
anyway, i wanted to install a ROM now, something like Cyanogenmod.
in this context i wonder what the Magisk-v11.6 does? Does it just give superuser permission and is it always required?
3) system only gives me option to Power Off System(no reboot possible)
and that power off and turn on always gets me first into bootloader tho i dont press vol down+start
Edit:
ok, i have here 3 issues still but it goes offtopic already. i throw a thanks first of all at TheFixItMan and then i think thread cna be closed.
I will soon try to install a ROM, like LineageOS 15.1 , and hope that my previous 3 issues will be solved in the process. . .

Techcri said:
ok, stock rom didnt boot so i flashed the "no-verity-opt-encrypt-5.1" .zip
and voila, i could boot the stock again finally! yipie!
anyway, i wanted to install a ROM now, something like Cyanogenmod.
in this context i wonder what the Magisk-v11.6 does? Does it just give superuser permission and is it always required?
Click to expand...
Click to collapse
Cyanogenmod is now lineageos
Use the latest version of magisk to root (see official magisk thread on xda)
You can run modules to mod phone without tripping integrity or dm-verity which if false will stop apps that check if you are rooted from working
Magisk hide can hide apps from detecting you are rooted on a per app selected basis
3) system only gives me option to Power Off System(no reboot possible)
and that power off and turn on always gets me first into bootloader tho i dont press vol down+start
Click to expand...
Click to collapse
Phone should power off normally
If it can't be started normally without going in bootloader and selecting normal startup see my faqs in twrp thread & follow guide to wiping the misc partition
Note if flashing lineageos 15.1 you will require the 64bit version of TWRP available on the lineageos thread - I did not compile this & don't support it
It also doesn't support encryption as far as I know so if you are encrypted you will need to format data & remove it else the rom will get stuck at the decryption screen

TheFixItMan said:
Phone should power off normally
Click to expand...
Click to collapse
it can be powered off normally as long as its not connected per usb (power or pc)
If it can't be started normally without going in bootloader and selecting normal startup see my faqs in twrp thread & follow guide to wiping the misc partition
Click to expand...
Click to collapse
that was not exactly the problem. my problem is that either i press restart system from system or from recovery, i first get a stop at the bootloader. from there i can just toggle to START and confirm. then my system boots. its just that i first need to confirm in bootloader the Start, always!
at this point i tried now anyways from your Official TWRP For Moto G5 Cedric- Thread |||||| your solution from your faq. But yea, it obviously doesnt fit my problem cause putting the lines in cmd prompt gave me that result and boot still does a stop at bootloader.. before i can start system or recovery..
So yea, after the first codeline didnt trigger for an unknown reason for me...
i hadnt the courage to even try the second more relevant codeline!
Note if flashing lineageos 15.1 you will require the 64bit version of TWRP available on the lineageos thread - I did not compile this & don't support it
It also doesn't support encryption as far as I know so if you are encrypted you will need to format data & remove it else the rom will get stuck at the decryption screen
Click to expand...
Click to collapse
btw, Thx a lot for the information, i appreciate it! i choose LineageOs 15.1 and it runs now. atm i am reading myself into magisk. Also big thanks for your tipp looking up the official thread.

Techcri said:
it can be powered off normally as long as its not connected per usb (power or pc)
that was not exactly the problem. my problem is that either i press restart system from system or from recovery, i first get a stop at the bootloader. from there i can just toggle to START and confirm. then my system boots. its just that i first need to confirm in bootloader the Start, always!
at this point i tried now anyways from your Official TWRP For Moto G5 Cedric- Thread |||||| your solution from your faq. But yea, it obviously doesnt fit my problem cause putting the lines in cmd prompt gave me that result and boot still does a stop at bootloader.. before i can start system or recovery..
So yea, after the first codeline didnt trigger for an unknown reason for me...
i hadnt the courage to even try the second more relevant codeline!
btw, Thx a lot for the information, i appreciate it! i choose LineageOs 15.1 and it runs now. atm i am reading myself into magisk. Also big thanks for your tipp looking up the official thread.
Click to expand...
Click to collapse
That error means your phone is not connected to your pc
Make sure you have enabled adb debugging in phones dev settings before booting into recovery
If you type
adb devices
It will list all devices attached
Once your device is listed the commands will work

TheFixItMan said:
That error means your phone is not connected to your pc
Make sure you have enabled adb debugging in phones dev settings before booting into recovery
If you type
adb devices
It will list all devices attached
Once your device is listed the commands will work
Click to expand...
Click to collapse
and you think that your commands fromyour solution here helps me with my issue that i can start straight to everywhere i want? Cause atm I just always have to go over the bootloader -"stop". From there i have then to manually "START" in order to start system (now: LineageOS 15.1:victory or where i have to manually toggle down to "RECOVERY MODE" and start TWRP.
Well, i would give it a try, but yea dunno what i am doing wrong here atm. i just realized that the command "adb devices" never worked for me yet, cause i got in conflict with the command fastboot adb devices which effectivly works for me. Cause before i installed lineageOS 15.1 i had to flash the twrp cedric 3.2.1-0 x64. i did that over the adb command prompt:
Code:
fastboot flash recovery twrp.img
and in that process i even let my phone restart to bootloader with
Code:
fastboot reboot bootloader
.
now i went to tab build nummer 7 times-> dev options "on" -> android debugging enabled.
when i go to bootloader now or to recovery, and connect my device, for a strange reason in command prompt "adb devices" shows that:
... i dont know why the cmd "adb devices" doesnt show my device. maybe there is a twrp setting i need to change?

Techcri said:
and you think that your commands fromyour solution here helps me with my issue that i can start straight to everywhere i want? Cause atm I just always have to go over the bootloader -"stop". From there i have then to manually "START" in order to start system (now: LineageOS 15.1:victory or where i have to manually toggle down to "RECOVERY MODE" and start TWRP.
Well, i would give it a try, but yea dunno what i am doing wrong here atm. i just realized that the command "adb devices" never worked for me yet, cause i got in conflict with the command fastboot adb devices which effectivly works for me. Cause before i installed lineageOS 15.1 i had to flash the twrp cedric 3.2.1-0 x64. i did that over the adb command prompt:
Code:
fastboot flash recovery twrp.img
and in that process i even let my phone restart to bootloader with
Code:
fastboot reboot bootloader
.
now i went to tab build nummer 7 times-> dev options "on" -> android debugging enabled.
when i go to bootloader now or to recovery, and connect my device, for a strange reason in command prompt "adb devices" shows that:
... i dont know why the cmd "adb devices" doesnt show my device. maybe there is a twrp setting i need to change?
Click to expand...
Click to collapse
Does it display a device when the phone is fully booted
If yes than the recovery you are using doesn't support adb (my official recovery does)
If no I recommend downloading the full android sdk and using the adb that comes with that (you will find it in the platform tools folder where you installed it)

Hello, thx for your support.
I linked the wrong picture. This Screeny shows the related cmd (when dev enabled, booted to recovery, connected via usb to pc and typed adb devices).
Does it display a device when the phone is fully booted. If yes than the recovery you are using doesn't support adb (my official recovery does)
Click to expand...
Click to collapse
it shows the same like linked above and when in recovery mode
so no , the 64bit version of twrp cedric 3.2.1-0 prolly isnt the problem.
If no I recommend downloading the full android sdk and using the adb that comes with that (you will find it in the platform tools folder where you installed it)
Click to expand...
Click to collapse
ok i will try that. and the command prompt i have to open from the directoryy<platform tools folder> then right?
would you deinstall minimal ADB and fastboot before installing full android sdk?

TheFixItMan said:
If no I recommend downloading the full android sdk and using the adb that comes with that (you will find it in the platform tools folder where you installed it)
Click to expand...
Click to collapse
still my phone isnt found
- sdk tools installed
- dev enabled
- adb debugging enabled
- command prompt opened at "...\android-sdk\platform-tools"
either in recovery nor in booted system nor in bootloader "adb devices" finds my phone
so the problem with the "bootstop" (have always to manually press "START" at bootloader) persists..
oh wait... i am not connected as admin! is it possible to open an admin command promp:silly:t?
so i am am reading here atm how to open command prompt in specific folder(platform-tools)
but wife is waiting for dinner so i better do that first..

Techcri said:
still my phone isnt found
- sdk tools installed
- dev enabled
- adb debugging enabled
- command prompt opened at "...\android-sdk\platform-tools"
either in recovery nor in booted system nor in bootloader "adb devices" finds my phone
so the problem with the "bootstop" (have always to manually press "START" at bootloader) persists..
oh wait... i am not connected as admin! is it possible to open an admin command promp:silly:t?
so i am am reading here atm how to open command prompt in specific folder(platform-tools)
but wife is waiting for dinner so i better do that first..
Click to expand...
Click to collapse
On windows 7 - hold shift then right click a white empty space of the window where adb is & select open command prompt here
Windows 7 or 10 - search for cmd then right click on cmd and select run as administrator then navigate using cd commands to adb location or copy & paste location (if any spaces in path then put the entire path in quotation marks)

On windows 7 - hold shift then right click a white empty space of the window where adb is & select open command prompt here
Click to expand...
Click to collapse
yes i did that before as non admin
Windows 7 or 10 - search for cmd then right click on cmd and select run as administrator then navigate using cd commands to adb location or copy & paste location (if any spaces in path then put the entire path in quotation marks)
Click to expand...
Click to collapse
i use win7 and cd'ing to the path was almost getting annoying
as screenshot shows, it still doesnt work

in my desperation i deinstalled now all adb drivers(minimal+ sdk)
ran a ccleaner and cleaned registry and reinstalled minimal adb again (btw, there was a new version by now out, 1.4.3)
so the episodes still goes on and i could figure out some new details
because i bought the same phone again for a relative who needed a phone..
in the process of setting it up correctly( thankfully xda is around ) i enabled dev options and the adb debugging
here is the result for the new phone
that shows now that executing as admin or standard user wasnt the problem. i just did it as standard user..
then i thought "hey cool, wait, i connect now my own G5 and see if i can get the phones' Nr displayed there and make sure my phone can communicate with my pc over adb( dunno if the sentence just made sense- greetz from a dummy)"
what happened is shown in this screenshot .. same picture as before! :crying:
(dont get irritated by the screeny because i used the same command prompt for
first, the new phone and
second, my "old" phone which doesnt boot properly, if you look at the command and the result
i am lost!
is it possible to reinstall a bootloader? or how come my phone doesnt communicate with the pc anymore?
and how come that effects the booting process so that i always get this "stop" at the bootloader although i pressed for a restart?
can i do any more tests that indicates what problem i have here?

[GUIDE] Root and unbrick steps for ASUS ZenPad C 7.0 (P10Z - Z170C)

Hi all! It took me a lot of time to finally being able to root this tablet. It's old, slow and practically unusable, but with some tricks it can be made much, much better. I'm going to explain what you need to do to root this tablet, and in case of brick (which happened to me many, many times) how to unbrick it. I even got to a point where I could not even boot into recovery mode, and only fastboot was working, that was scary, but I managed to get out. Every single file I will use will be bundled in a ZIP you can download, and I'll try to make sure this link stays up, because there's nothing more frustrating than wanting to make these things in the future only to find out the link is dead, along with all your hopes. Before we begin, a little disclaimer:
Code:
#You, and only you are responsible for everything that you do or happens to your tablet.
#If you screw up, I have a number of backups to help you recover, but if that's not enough don't point a finger at me.
#I will not be babysitting anybody to help restore their tablet or recover lost data.
#This process WILL wipe all of your data, do a backup before beggining.
#YOU HAVE BEEN WARNED!
1. ENABLING USB DEBUGGING
This is a very basic step, but it's needed if you want to even begin to do this. You'll need to go to "Settings -> About Phone". There, look for a line that says "Compilation Number" (or something like that) and tap it multiple times. You will see a message pop up saying "You are now a developer" (I wish it was that easy). Go back to the settings screen, you will see a new option appeared called "USB Debugging". Enable it, and make sure "Developer Options" are enabled too at the very top of the screen. Now, connect the tablet to your computer. You will see a message pop up asking for permission, tap "Always allow from this computer" and press "Allow".
That's it for this step.
2. SETTING UP ADB TOOLS AND MAKING SURE THEY WORK
Now that we have USB debugging enabled, and we have allowed our PC to access the tablet, we can begin setting up ADB. The required files are attached in the zip.
Extract the "platform-tools" folder and move it somewhere nice. Then open it, hold shift and right click in a white space and select the option "Open command window here". CMD will pop up, now type:
Code:
adb devices
It will probably say something about a server followed by a list of attached devices. If you see a serial number there, then great! ADB is working as it should. If not, make sure the tablet is connected, that USB Debugging is on, and if all else fails, try with another cable.
Now for the juicy part.
3. UNLOCKING THE BOOTLOADER
We will have to unlock the bootloader if we want to do anything here. Here's what to do. Type:
Code:
adb reboot fastboot
Wait until the tablet reboots into fastboot. Once there type:
Code:
fastboot oem unlock
fastboot oem unlock confirm
This should unlock the bootloader.
NOTE: This method of unlocking is reported to not work anymore, but I listed it anyway just in case, as it doesn't hurt to try. If this is not working for you, don't panic, it's normal, use the following code instead:
Code:
fastboot oem asus-go
fastboot oem asus-go confirm
This should work, and the bootloader should be unlocked now.
4. INSTALLING THE REQUIRED FIRMWARE
Now, your tablet may or may not have the required firmware for the procedure, but just in case we will flash one that's sure to work. If you followed along, you should be in fastboot mode right now. Type:
Code:
fastboot reboot
Your tablet should boot as normal, without any changes (unless the first bootloader unlock method worked for you, in which case it probably wiped all of your data). Now we can access ADB once again, so type:
Code:
adb reboot recovery
The tablet will reboot into recovery mode and you should see an image of wasted android with an open belly (if you don't see this it doesn't matter). You should see a list of options with blue text, you must use the volume keys to navigate this menu. If you don't see any options, press any volume key and they should appear. If instead of getting into recovery mode, the tablet just turned off, then go to the "Fixing recovery" section.
In this menu, you must select "Wipe data/factory reset". This will, obviously, wipe all of your data. Once that finishes, select the "Install update through ADB" option. Once that's done, make sure the "updated_firmware.zip" file is in the same directory as the "adb.exe" file, then type:
Code:
adb sideload updated_firmware.zip
This will install the firmware, it will take about 20 mins. Once finished, reboot the device. You may think it got bricked at this point, fear not, the first boot really takes this long (about 10 mins).
Once everything is done, the device should boot up and everything should be exactly as it was when you took it out of the box, meaning, it doesn't even remember your wifi password. Do a quick (but proper) set up and enable USB Debugging again, make sure to allow the PC again (and check the "always allow" box). Also, scroll down a bit more in the developer options section and look for one that says "Verify apps installed through USB" or something of that kind. Make sure it's unchecked. Now, we gotta install root.
5. ROOTING
The all holy root, finally here. Type this into the terminal:
Code:
adb reboot fastboot
You should be familiar with this process by now. Once in fastboot mode, type:
Code:
fastboot boot root.img
Once finished, reboot. You should boot up as a rooted user, hooray! Only one final step, we gotta give ourselves some means to control this new power, that's where the SuperSU app comes into play.
6. INSTALLING SUPERSU
Apparently, not every single SuperSU apk file works... but lucky for you, I managed to scout and bundle one that does, so use that one. Make sure the apk file is in the same folder as "adb.exe" (as with all of the previous files) and type:
Code:
adb install supersu-2-82.apk
Leave it a few mins, and you should see a "success!" message when it's finished. Open the SuperSU app and it will tell you that you need to update the binaries. Say yes to that, and when asked wether to do a "Normal" update or "TWRP" update, select normal. It should be successful and prompt you to reboot, do so.
That's about it, you now have root access in the ASUS ZenPad C 7.0.
NOTE: Every single attempt I made to make the SuperSU app a system app resulted in the app crashing and I needed to reinstall it again, do as you please.
Why would you even want to do this you might ask? Well, I personally used this to make a few tweaks with Kernel Auditor and L Speed, two apps that will let you customize the performance of the machine to its maximum... sacrificing battery of course. You can search online for the best configuration for you for these apps. With the right tweaks, it transforms from **** to usable, and you need root for all of this.
As a quick note, you might notice that the SuperSU pop up that prompts you wether to grant or deny root access to an app is delayed, that's just how life is with this machine, it's slow. As a tip, when an app is trying to acquire root access, go back to the home screen and open the SuperSU app, then go back to the app you were trying to give it access to, it should appear quicked that way. Sometimes it's so slow that the app says I don't have root, only to have the pop up appear 10 seconds later. Now... to a final chapter.
7. UNBRICKING
This would be the end of the story if nothing went wrong, you have a rooted tablet and you can now do whatever you want with it, but that's not how life is. **** happens, things can go wrong, and when they do, you better have a backup plan. I don't know how to get back your ex, but I know how you can unbrick your tablet if that should happen. Follow these steps if you want to recover this machine...
Code:
#This process will wipe all data, but you shouldn't care about that since you can't access it anyway.
So, if the tablet doesn't turn on and gets stuck at the boot up screen, what can we do? Well, let it sit at the boot up screen for a few mins, and then type in the terminal:
Code:
adb devices
If it's recognized, then type:
Code:
adb reboot recovery
If it's not recognized, press the power button and the volume down key until the tablet turns off. Once that happens, press the power button and the volume down key, when the logo appears, let go of the power button and keep the volume down key pressed, that should boot the tablet into recovery mode. If you got into recovery mode, skip to 7.2
7.1 FIXING RECOVERY MODE
Sometimes, (it happened to me), recovery mode is broken.... it just doesn't appear, no matter what you do you can't get into it. To fix this, we gotta flash it again. We gotta enter fastboot mode. One option is to boot up the device until it gets stucked and wait a few mins, then adb should be able to recognize it and you type:
Code:
adb reboot fastboot
If that's not the case, turn the tablet off and press power and volume up, that should get you to fastboot. Once there type:
Code:
fastboot devices
And the tablet should appear there, if it doesn't... well it better do. I don't really know what to do if it doesn't appear there, but there shouldn't be a reason for it not to. I guess you can try to enter fastboot once again, with the tabler connected from the beggining or something like that, let's just assume it does, and if it doesn't then I'm sorry to tell you that's homework you will have to do.
Once here, we must format the cache and the data partition, for that type the following:
Code:
fastboot format cache
fastboot format userdata
Now, we need to get the recovery files, grab them from the zip I gave you. The files in question are "recovery.bin" and "vrl.bin". We will start with vrl. Once the two formats are finished, type:
Code:
fastboot flash vrl vrl.bin
Followed by:
Code:
fastboot flash recovery recovery.bin
Once that's done, press the power button and volume down keys until the tablet turns off. Then, press them again until the logo appears, and when that happens let go of the power button, that should get you (finally) into recovery.
7.2 UNBRICKING (FOR REAL THIS TIME)
Well, now that everybody is on the same page, and we could get to recovery mode, it's time to repeat some steps really... Follow the procedure from step 4 onwards (from the part that tells you to go to recovery). So, wipe data and apply that damn zip with sideload, the tablet should work now.
That's all I have to offer guys. I'm not a developer, I'm just a guy with a bunch of free time on his hands, so I was able to gather all of this information and (most importantly) files so you can root and fix this god damn tablet. Until the next one!
FINAL NOTE: In the files I included, there's a TWRP.img file. This is the TWRP custom recovery. As far as I know, this version should work with this tablet, but I was unable to flash it and make it work. IF YOU WANT TO TRY THIS DO SO AT YOUR OWN RISK, IT'S HIGHLY PROBABLE THAT THIS WILL RESULT IN BRICKING YOUR TABLET AND BREAKING THE STOCK RECOVERY, IN WICH CASE YOU WILL NEED TO FOLLOW THE STEPS STATED IN THIS GUIDE.
I couldn't upload the files as an attachment directly... sorry.
The "updated_firmware.zip" file is added as a separate download because it's a bigger file, and I prefer to let people decide if they even want it in the first place.
updated_firmware.zip
Everything else

None of the 8 drivers from Intel or Google detect the device in fastboot mode. I tried fixing this tablet years ago and had the fastboot drivers. As far as I know I have the same ones. These all loaded with no problem, but I could never get ADB Device to detect it in fastboot mode
Google: Android ADB Interface | Android Bootloader Interface | Android Composite ADB Interface
Intel: Android ADB Interface | Android Bootloader Interface | Intel AndroidADB Interface | Intel Android Bootloader Interface | Intel Android Composite ADB Interface

neghvar said:
None of the 8 drivers from Intel or Google detect the device in fastboot mode. I tried fixing this tablet years ago and had the fastboot drivers. As far as I know I have the same ones. These all loaded with no problem, but I could never get ADB Device to detect it in fastboot mode
Google: Android ADB Interface | Android Bootloader Interface | Android Composite ADB Interface
Intel: Android ADB Interface | Android Bootloader Interface | Intel AndroidADB Interface | Intel Android Bootloader Interface | Intel Android Composite ADB Interface
Click to expand...
Click to collapse
Make sure you enable usb debugging, no driver will work without that enabled.

tralph3 said:
Make sure you enable usb debugging, no driver will work without that enabled.
Click to expand...
Click to collapse
Not possible. This hangs during boot up or I can enter fast boot mode. It has been like this for years. Basically a soft brick. I tried to fix this years ago as stated above, but having seen this latest post about it, I decided to try again. But this time, I cannot find a fastboot driver that shows the device as attached when I run ADB devices

neghvar said:
Not possible. This hangs during boot up or I can enter fast boot mode. It has been like this for years. Basically a soft brick. I tried to fix this years ago as stated above, but having seen this latest post about it, I decided to try again. But this time, I cannot find a fastboot driver that shows the device as attached when I run ADB devices
Click to expand...
Click to collapse
Be aware that when in fastboot mode, adb devices never lists anything, you must use "fastboot devices"

tralph3 said:
Be aware that when in fastboot mode, adb devices never lists anything, you must use "fastboot devices"
Click to expand...
Click to collapse
Yep! That's where I was messing up. Thank you.
And the tablet is now working. Thank you very much.
One last question though. I tried to install the twrp.img file included in the pack
fastboot flash recovery TWRP.img
Here is what I got
Sending 'recovery' (26588 KB) (bootloader) Ready to receive: 0x019f7000 size of data
OKAY [ 0.741s]
Writing 'recovery' (bootloader) Flashing partition: recovery
FAILED (remote: ' Download image size is large than partition size')
fastboot: error: Command failed
How do I get around this if the image file is too large?

neghvar said:
Yep! That's where I was messing up. Thank you.
And the tablet is now working. Thank you very much.
One last question though. I tried to install the twrp.img file included in the pack
fastboot flash recovery TWRP.img
Here is what I got
Sending 'recovery' (26588 KB) (bootloader) Ready to receive: 0x019f7000 size of data
OKAY [ 0.741s]
Writing 'recovery' (bootloader) Flashing partition: recovery
FAILED (remote: ' Download image size is large than partition size')
fastboot: error: Command failed
How do I get around this if the image file is too large?
Click to expand...
Click to collapse
Yeah I never could get around it either. I never could install a custom recovery on this tablet, it just wasn't made for it. But hey, root is cool.

Work?
Still working?

jerryspring said:
Still working?
Click to expand...
Click to collapse
Why wouldn't it? This tablet ain't gonna change. Everything should work no problem.

Hi, any custom rom for this device to make it useful ?
It is in my drawer for more than 2 years and I just do not know what with it
Also how to play with settings in root mode so I can make it faster ?

Hey folks,
I recently followed this guide and a couple of issues.
First, I had expected all my data to be gone, which is fine. But it wasn't. I seemed to have gotten all the way through without it being reformatted, and this makes me suspect I never really achieved all the goals.
One thing I should note, in recovery boot, I had to use the volume button to select a source. No big deal, but it had not worked until I guessed I needed to do that.
Oh, and another thing is I had to install the driver package, and then after, once it was rebooted into fastboot, manually guide the device manager to select from list.
It seems after complete shutdown and then a fresh bootup, my SuperSU software was gone. So, is this only a tethered root boot? Is there a completely untethered?
After rebooting again, it seems my device will not complete booting, but I will give it some more time. I may have bricked it, though I have no idea how lol. All I did was enable USB debugging again and issued the reboot command.
I know this is an old guide, and probably long forgotten by most participants, but I recently got one of these tablets online, open box but new or like new, for around $20, and I would like to get it rooted because otherwise, it is extremely sluggish and the battery drains very fast. I read online it is google play services at fault, but I do not know for sure.
Anyway, if anyone has any updated info or alternative method to achieve full root access untethered, please advise. Unless this guide is that, in which case I just need to try again. Just out of curiosity, what is the TWRP.img for?