[GUIDE] How to ROOT Bell official v20e firmware - LG Nitro HD

Instructions how to ROOT Official Bell Android 4.0.4 firmware version v20e​
Original thread
0. Extract P930_v20e_ROOT folder from attached file to C: drive
1. Flash v20e firmware (you can use official tool or UpTestEX_mod2_marwin.exe method)
2. Turn on USB debugging and Unknown Sources
3. Install LG_SystemBackupTest.apk and start it
4. Wthout touching anything press&hold power button and reboot, after reboot your phone must lags (you can see it by unlock in lockscreen)
5. Connect phone to PC and start root_P880.bat
6. Wait until phone reboots several times.
7. If you get root, you can delete SystemBackupTest app that you have installed on 3d step, because phone will lag with it

ISSUE - after the root the system storage is 315 MB only

kavena78 said:
ISSUE - after the root the system storage is 315 MB only
Click to expand...
Click to collapse
No issues. 2.15Gb total space

Please see the attached image, it is showing 315mb. I am getting low space warning. Pls help
Sent from my LG-P930 using xda app-developers app

kavena78 said:
Please see the attached image, it is showing 315mb. I am getting low space warning. Pls help
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Factory reset.
Sent from my LG-P930 using xda premium

yes it works after factory reset, thanks

Recovery Boot Error
ROM Manager recovery boot failed
Secure booting Error!
Cause: boot certification verify
Any help pls

kavena78 said:
ROM Manager recovery boot failed
Secure booting Error!
Cause: boot certification verify
Any help pls
Click to expand...
Click to collapse
You can only install CWM when coming from a Gingerbread official ROM. Meaning you have to follow unbricking instructions to downgrade to an official Gingerbread ROM, then flash CWM using that. Currently there is no CWM-flashable version of Bell's ICS though, but one will probably pop up soon.

hi and help please
5. Connect phone to PC and start root_P880.bat for this do i use mass storage or the LG software?
also when i run the root_P880.bat i get only fail and cannot open and acess denied in the command prompt
the cell reboots twice and then the command prompt window closes
i need help
thank you
edit : it worked
i'll keep y original post just to show that when you get this issue
just try agin and again and again (from run the app and reboot part)
cheers to you for finding and posting this method

Once you do this method is it possible to unroot without going through the unbricking guide and reflashing the ROM?
Edit: NVM it looks like you can do it with the SU app, it says so on the second last page of original thread.

CWM
So is anyone working on a cwm recovery image for ics now that we have an easy root method? is this a simple thing to do?

cashy57 said:
So is anyone working on a cwm recovery image for ics now that we have an easy root method? is this a simple thing to do?
Click to expand...
Click to collapse
It already exists:
Bell version - http://forum.xda-developers.com/showthread.php?t=1837533
AT&T version - http://forum.xda-developers.com/showthread.php?t=1803617

@drumist,
I think he's asking if there's a version of CWM that can be flashed while on official ICS and the answer to that is no, unfortunately not with the ****ty ICS bootloader.
Sent from my LG-P930 using Tapatalk 2

Malnilion said:
@drumist,
I think he's asking if there's a version of CWM that can be flashed while on official ICS and the answer to that is no, unfortunately not with the ****ty ICS bootloader.
Click to expand...
Click to collapse
Oops, you're right.

to unroot it s really simple
just do the update to ICS again (via the lg prog) i did it ,and it works easy

Does this root method work on the at&t model v20c also ? Thanks

Worked perfectly on the first try. Thanks

does it work on att v20c?

divingbora said:
does it work on att v20c?
Click to expand...
Click to collapse
no

Will this work on my SU640 running on V20d?
Sent from my LG-SU640 using xda premium

Related

JB OTA won't install- says install untrusted zip? in cwm

I started doing the Google framework force stop and clear cache today while on wifi and was prompted after 5 or 6 tries. It downloaded, verified download, rebooted and TRIED to install. About 15% through, it said untrusted zip and cwm screen popped up top and asked 'install untrusted zip?' Of course I hit yes.. why isn't it trusted? Its straight from the carrier. Anyway it immediately said installation aborted. I repeated this process again and got the same results. Please someone help. Now that JB is finally here my phone won't take it???
Sent from my Galaxy Nexus using xda app-developers app
Your phone is rooted? If yes you can't install OTA updates
I'm rooted yes. So what do I do? Unroot?
Sent from my Galaxy Nexus using xda app-developers app
htc_woe_is_me said:
I started doing the Google framework force stop and clear cache today while on wifi and was prompted after 5 or 6 tries. It downloaded, verified download, rebooted and TRIED to install. About 15% through, it said untrusted zip and cwm screen popped up top and asked 'install untrusted zip?' Of course I hit yes.. why isn't it trusted? Its straight from the carrier. Anyway it immediately said installation aborted. I repeated this process again and got the same results. Please someone help. Now that JB is finally here my phone won't take it???
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
If you have CWM flashed, you have to manually flash the update -- it won't install over-the-air. If you want to install it over-the-air, flash back the stock recovery then accept the update.
polimeno said:
Your phone is rooted? If yes you can't install OTA updates
Click to expand...
Click to collapse
Not true. Root makes no difference.
efrant said:
If you have CWM flashed, you have to manually flash the update -- it won't install over-the-air. If you want to install it over-the-air, flash back the stock recovery then accept the update.
Not true. Root makes no difference.
Click to expand...
Click to collapse
So either way I will lose all my settings, home screens and what not?
I used Galaxy Nexus Toolkit to do all of my rooting, installing CWM and all-- is there a way to accomplish what I need to on there?
efrant said:
If you have CWM flashed, you have to manually flash the update -- it won't install over-the-air. If you want to install it over-the-air, flash back the stock recovery then accept the update.
Not true. Root makes no difference.
Click to expand...
Click to collapse
It's exact. But root can only be done if you have bootloader unlocked, and with unlocked bootloader can not install OTA updates
htc_woe_is_me said:
So either way I will lose all my settings, home screens and what not?
Click to expand...
Click to collapse
No, updating using an OTA update file will NOT make you lose anything.
htc_woe_is_me said:
I used Galaxy Nexus Toolkit to do all of my rooting, installing CWM and all-- is there a way to accomplish what I need to on there?
Click to expand...
Click to collapse
I can't help you out with the toolkit, but have a look at my signature for some useful links on doing things without a toolkit.
efrant said:
No, updating using an OTA update file will NOT make you lose anything.
I can't help you out with the toolkit, but have a look at my signature for some useful links on doing things without a toolkit.
Click to expand...
Click to collapse
OK, so the best thing would be to flash the stock recovery? Sorry for all the questions, and I really appreciate all your help. I swear I used to know how to do this crap on my Dinc, but it's been years since I did all that.
htc_woe_is_me said:
OK, so the best thing would be to flash the stock recovery? Sorry for all the questions, and I really appreciate all your help. I swear I used to know how to do this crap on my Dinc, but it's been years since I did all that.
Click to expand...
Click to collapse
Go to the Google page with all the images and download the mysid IMM76K image, extract the recovery.img from within, and flash it using fastboot: fastboot flash recovery recovery.img
efrant said:
Go to the Google page with all the images and download the mysid IMM76K image, extract the recovery.img from within, and flash it using fastboot: fastboot flash recovery recovery.img
Click to expand...
Click to collapse
OK, I'm trying this now... I downloaded the images from Google.. extracted its contents... found the recovery image file. Do I need to put that file into a zip file?
htc_woe_is_me said:
OK, I'm trying this now... I downloaded the images from Google.. extracted its contents... found the recovery image file. Do I need to put that file into a zip file?
Click to expand...
Click to collapse
Gnex Toolkit wasn't working because of some missing file... re-installed it and flashed the stock recovery via Gnex Toolkit (I think). Is there a way to check which recovery is running? Anyway, if it is indeed stock, I just got prompted again for the OTA JB update.. it's installing now.... fingers crossed!!!
..OK so now it rebooted... started installing, got about halfway through.. paused, then it went to the stock recovery screen and stayed with a red triangle around an exclamation point! What is happening here?!
I have now re-locked the bootloader and received the prompt for OTA again....
Still won't work for me. I've tried even flashing the stock image and it won't install at all. Actually nothing is installing.
I've never done anything to the phone besides unlocking the BL and rooting and switching to CWM. It seems to have something to do with the SD mount.. nut then again I have no idea.
Where's all the Android gurus at?
Sent from my Galaxy Nexus using xda app-developers app
htc_woe_is_me said:
Still won't work for me. I've tried even flashing the stock image and it won't install at all. Actually nothing is installing.
I've never done anything to the phone besides unlocking the BL and rooting and switching to CWM. It seems to have something to do with the SD mount.. nut then again I have no idea.
Where's all the Android gurus at?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Follow the instructions in the "update" link in my signature.
Sent from my Galaxy Nexus using Tapatalk 2
Guys i am having this EXACT problem, except on a S4 (I337M to be exact)
Here is my thread with the details
http://forums.androidcentral.com/as...t-update-ota-failure-using-triangle-away.html
But basically, im just wondering how i can get stock recovery back and get this ota to work!!!
Thanks!

Need URGENT help! Installed a app and now stays on booting screen!

Installed a app to change transitions, chose my transition, and it asked to reboot, so i did it, but now, it stays on rebooting screen :'(
Can this be fixed? i unlocked bootloader and flashed recovery and can ge tinto recovery mode but i can´t access the phone.. I'm panicked rlly :'(
Sorry, i know I'm a noob in this topics.. If you could help me i can give you my skype also..
Thanks
Paul
paulo111 said:
Installed a app to change transitions, chose my transition, and it asked to reboot, so i did it, but now, it stays on rebooting screen :'(
Can this be fixed? i unlocked bootloader and flashed recovery and can ge tinto recovery mode but i can´t access the phone.. I'm panicked rlly :'(
Sorry, i know I'm a noob in this topics.. If you could help me i can give you my skype also..
Thanks
Paul
Click to expand...
Click to collapse
If you have a custom ROM installed just wipe cache and dalvik... reflash that ROM and gapps and reboot
EDIT: always make a nandroid backup when ever you flash something you are not 100% sure it will work on your device
Sent from my Galaxy Nexus using xda premium
NORCALkID said:
If you have a custom ROM installed just wipe cache and dalvik... reflash that ROM and gapps and reboot
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I didn't change anything in the roms, i have the original rom installed never done a backup or installed a other rom..
I didn't do it, should have known that before... is there no way out now?
[HOW-TO] [GSM & CDMA] Convert to latest yakju/takju/mysid (incl JB) / Return to stock
Did you use a toolkit to unlock boot loader? You could use one to reflash a stock image ? Or push an update.zip over USB and flash from recovery ?
daz.g said:
Did you use a toolkit to unlock boot loader? You could use one to reflash a stock image ? Or push an update.zip over USB and flash from recovery ?
Click to expand...
Click to collapse
I used toolkit to unlock boot loader yeah, add me on skype that way i can tell you what i did, i'm not very good in this area idk how to do those things you said :\ Sorry
3rdstring said:
[HOW-TO] [GSM & CDMA] Convert to latest yakju/takju/mysid (incl JB) / Return to stock
Click to expand...
Click to collapse
Can i do this without being able to go to homescreen? only from recovery?
Maybe somebody can assist me via skype and tell me what to do? I really don't know what to do :'(
I feel so stupid right now.. Hope some1 can help me.
Skype is: hoepaulo
paulo111 said:
Maybe somebody can assist me via skype and tell me what to do? I really don't know what to do :'(
I feel so stupid right now.. Hope some1 can help me.
Skype is: hoepaulo
Click to expand...
Click to collapse
read the link that was posted to you by 3rdstring
You have a couple options here. Two that pop into my head immediately are download a custom ROM make sure it is for whatever device you have I.e. maguro, toro, toroplus. Boot into recovery and follow the directions in the ROM thread to install. Or download the stock images for your device and boot into bootloader and fastboot flash those. There are guides everywhere to do this.
Edit: forgot to mention that in recovery if going the ROM route you need to get that ROM. zip onto your SD card. Do it by mounting SD card in storage and adb push the zip to /sdcard.
Sent from my Galaxy Nexus using xda premium
Going back to the stock may help you after wiping dalvik cache.
Sent from my Galaxy Nexus using xda premium
Beamer9408 said:
Edit: forgot to mention that in recovery if going the ROM route you need to get that ROM. zip onto your SD card. Do it by mounting SD card in storage and adb push the zip to /sdcard.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
This doesnt work on our device. In recovery, push files with adb to /data/media/.
Sent from my i9250

My phone's stuck on 2.3.6, can't upgrade or root

Hi everyone. I had a long journey trying to root my phone, I originally had ICS and tried following this tutorial: http://forum.xda-developers.com/showthread.php?t=2044645 It was able to get my phone rooted by step 7, but then I couldn't get into recovery mode, it kept giving me:
---------------
Secure booting Error!
Cause : boot certification verify
-------------------------
------------------------------
Enter the fastboot...
Enter the fastboot...
Long time no see!
-------------------------------------------------
So I thought perhaps this doesn't matter at this stage and so I continued on with the tutorial. Eventually (long story short) something happened and now I have downgraded to Android 2.3.6 but my phone is no longer rooted (I don't have 'super user' app and root checker says I'm not rooted). I tried upgrading back to at least ICS through software update but it gives me a "you are not registered" (or something like that) and won't update.
I have no idea what to do now. I honestly just want to get ICS back and give up on this whole rooting attempt. Any ideas/help appreciated.
You should have followed this guide :
http://forum.xda-developers.com/showthread.php?t=2044645
It's newer and much easier. Now for the problem at hand, run the v18f exe file from the above guide. That should fix the issue you have then be able to get to any rom from there. Make sure you follow the guide precisely.
Sent from my LG-P930 using xda app-developers app
Swetnes said:
You should have followed this guide :
http://forum.xda-developers.com/showthread.php?t=2044645
It's newer and much easier. Now for the problem at hand, run the v18f exe file from the above guide. That should fix the issue you have then be able to get to any rom from there. Make sure you follow the guide precisely.
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the reply. I actually was able to just use the LG update on it's own to get ICS back, though the phone isn't rooted anymore.
At some point I did try the tutorial you sent but it wouldn't let me get into recovery mode, it gave me the error I mentioned. I'm just wondering though, if I use that tutorial again, will it work with ICS and v20f? Also, by the end of it what will i get? a rooted phone with Gingerbread? (sorry if they're stupid questions, I'm still learning).
hellored said:
Thanks for the reply. I actually was able to just use the LG update on it's own to get ICS back, though the phone isn't rooted anymore.
At some point I did try the tutorial you sent but it wouldn't let me get into recovery mode, it gave me the error I mentioned. I'm just wondering though, if I use that tutorial again, will it work with ICS and v20f? Also, by the end of it what will i get? a rooted phone with Gingerbread? (sorry if they're stupid questions, I'm still learning).
Click to expand...
Click to collapse
You got that error because you tried to install CWM with the ICS boot loader still installed. The link I provided has you install v18f so it can be rooted and them use the program to keep root so you can downgrade to Gingerbread so CWM can be installed.
One more thing: if all you want is root but don't care about installing another ROM use this to root v20c and stay 100% stock other than root: http://forum.xda-developers.com/showthread.php?t=1886460
Sent from my LG-P930 using xda app-developers app
Swetnes said:
You got that error because you tried to install CWM with the ICS boot loader still installed. The link I provided has you install v18f so it can be rooted and them use the program to keep root so you can downgrade to Gingerbread so CWM can be installed.
One more thing: if all you want is root but don't care about installing another ROM use this to root v20c and stay 100% stock other than root: http://forum.xda-developers.com/showthread.php?t=1886460
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Okay, I get it. I think I might've missed a step somewhere along the line or something. However, as you said, I really just want to root to give myself the super user ability/app since I find it helpful. I did try the link you provided before and now again but it won't work. First of all I have v20f not v20c (is that why?). Second, I choose normal mode, and then it tells me to look at my phone and click restore. My phone shows a window saying "Restore my data" and "Do not restore" but also asks for a password. Since I don't think I have a password I click on Restore my data (and leave those field blank). My phone says "Restore Starting"...then it says "Restore ended" (within a few seconds) but the Bin4ry bat file won't move on to the next step. It just stays at "Running..." Any ideas?
hellored said:
Okay, I get it. I think I might've missed a step somewhere along the line or something. However, as you said, I really just want to root to give myself the super user ability/app since I find it helpful. I did try the link you provided before and now again but it won't work. First of all I have v20f not v20c (is that why?). Second, I choose normal mode, and then it tells me to look at my phone and click restore. My phone shows a window saying "Restore my data" and "Do not restore" but also asks for a password. Since I don't think I have a password I click on Restore my data (and leave those field blank). My phone says "Restore Starting"...then it says "Restore ended" (within a few seconds) but the Bin4ry bat file won't move on to the next step. It just stays at "Running..." Any ideas?
Click to expand...
Click to collapse
Ok now we are getting somewhere. First of all v20(x) doesn't matter. If it hangs on you saying "running" just close the "command" window, and try again. The couple of times I have tried it it has always done that the first time but then worked the second or third time. It is at that point the phone is supposed to reboot. Good luck.
Sent from my LG-P930 using xda app-developers app
Swetnes said:
Ok now we are getting somewhere. First of all v20(x) doesn't matter. If it hangs on you saying "running" just close the "command" window, and try again. The couple of times I have tried it it has always done that the first time but then worked the second or third time. It is at that point the phone is supposed to reboot. Good luck.
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
First off, thanks for keeping up with me. Well, after like the fifth try, using a way of opening the bat file through cmd manually (not sure how it's any different) I actually got it to say "Successful" and it actually rebooted my device!!...However, it then said something like "Permission denied (are you root?)" or mount failed. So although the file said at the end that my root was successful, I realize it really wasn't and I even made sure; I don't have super user or anything and even root check doesn't say I'm rooted.
I tried it one more time after, but again, it wouldn't reboot. So I tried it again and this time after clicking Restore, I unplugged and plugged my USB. It did say "success" and rebooted my device, though again, the same "mount" error came up and my device isn't rooted.
Any ideas??
Two questions: first what version of windows? Second how are you launching the bat file?
Sent from my LG-P930 using xda app-developers app
I have Windows 7 64 bit and initially I just launched the bat file but double clicking it/opening it normally. However, as I mentioned, the one time it did work I opened the file using this method: youtube . com/ watch?v=7EpkrCq1gfM (all you do is launch the bat file 'manually' more or less by opening cmd prompt then directing it to the folder with the bat file, then running the bat file)
Okay I will thing you might try.... Copy the bat file along with the stuff folder to c:\. This is a wild stab in the dark but under Windows 7 the root folder has different permissions than sub folders and then just double click on the bat file from there.
If you are still having issues use this process: http://forum.xda-developers.com/showthread.php?t=2044645
Basically you get the ICS leak v18f use the tpsparky method to root then using the keep root method to keep root while you upgrade to v20f.
Sent from my LG-P930 using xda app-developers app
Tried moving it to c:\ but same error "cannot mount" or whatever.
Swetnes said:
...
Basically you get the ICS leak v18f use the tpsparky method to root then using the keep root method to keep root while you upgrade to v20f.
...
Click to expand...
Click to collapse
Does this mean you're suggesting I just do the whole guide all over again or do you mean I can just stop at some step?
hellored said:
Tried moving it to c:\ but same error "cannot mount" or whatever.
Does this mean you're suggesting I just do the whole guide all over again or do you mean I can just stop at some step?
Click to expand...
Click to collapse
You can follow the whole guide if you want to install CWM. However if you use v20f as your kdz file or any other ics kdz this will accomplish what you want.... Rooted ics. Do you have the kdz file for v20f? Or another way to look at it is the whole purpose of the before and after bat files is to maintain root when going from one rom to another. You don't have to go to Gingerbread only if you want to install CWM.
I just wish I knew why you were having to many issues.... Try this open a windows command prompt and go to the stuff folder and type the following command:
adb device
What do you get back in response?
Sent from my LG-P930 using xda app-developers app
Swetnes said:
You can follow the whole guide if you want to install CWM. However if you use v20f as your kdz file or any other ics kdz this will accomplish what you want.... Rooted ics. Do you have the kdz file for v20f? Or another way to look at it is the whole purpose of the before and after bat files is to maintain root when going from one rom to another. You don't have to go to Gingerbread only if you want to install CWM.
...
Click to expand...
Click to collapse
O, okay, I see. Well ya, at this point I just want rooted ICS...which I did have before, I just couldn't get into recovery mode as mentioned. But it seems I need to get gingerbread for that...is that right? That's why I got this error before:
---------------
Secure booting Error!
Cause : boot certification verify
-------------------------
------------------------------
Enter the fastboot...
Enter the fastboot...
Long time no see!
-------------------------------------------------
It meant that even though I had it rooted, because I had ICS it couldn't go into recovery?
As for V20f kdz, I found this thread which seems to give it to you: forum.xda-developers . com/showthread.php?t=2073620 (right?)
Swetnes said:
....
I just wish I knew why you were having to many issues.... Try this open a windows command prompt and go to the stuff folder and type the following command:
adb device
What do you get back in response?
...
Click to expand...
Click to collapse
It gives me the "List of devices attached:" and then under it my device code.
hellored said:
O, okay, I see. Well ya, at this point I just want rooted ICS...which I did have before, I just couldn't get into recovery mode as mentioned. But it seems I need to get gingerbread for that...is that right? That's why I got this error before:
---------------
Secure booting Error!
Cause : boot certification verify
-------------------------
------------------------------
Enter the fastboot...
Enter the fastboot...
Long time no see!
-------------------------------------------------
It meant that even though I had it rooted, because I had ICS it couldn't go into recovery?
As for V20f kdz, I found this thread which seems to give it to you: forum.xda-developers . com/showthread.php?t=2073620 (right?)
It gives me the "List of devices attached:" and then under it my device code.
Click to expand...
Click to collapse
I literraly had this exact error on my p930 2 days ago when a tried installing CWM for the first time. the only way i was able to unbrick the phone was following this guide.
http://forum.xda-developers.com/showthread.php?t=1784709&page=4
if you have any questions you can ask me, i just did it on my phone so i should be able to answer unless you run into a problem i didn't
At what stage do you get the secure boot error? Is it after v18f is rooted and you are doing the before and after bat files with. KDZ file?
Sent from my LG-P930 using xda app-developers app
Swetnes said:
At what stage do you get the secure boot error? Is it after v18f is rooted and you are doing the before and after bat files with. KDZ file?
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
if his problem happened the same as mine after trying to boot into cwm for the first time you get the error, becuase lg has a secure bootloader. after this i had to follow the unbrick guide, eventually you end up with at&t stock rom, then you are able to boot into cwm and install a custom rom like CM
One thing just occurred to me you need to stop at step 18 on the unbricking guide. If the KDZ that you are using is one of the v20(x)_00.kdz variants do not use adb to push the recovery.img file this WILL brick your phone and cause the secure boot error this is used to push recovery onto v10(x)_00.kdz only.
Sent from my LG-P930 using xda app-developers app
KronicSkillz said:
I literraly had this exact error on my p930 2 days ago when a tried installing CWM for the first time. the only way i was able to unbrick the phone was following this guide.
http://forum.xda-developers.com/showthread.php?t=1784709&page=4
if you have any questions you can ask me, i just did it on my phone so i should be able to answer unless you run into a problem i didn't
Click to expand...
Click to collapse
Okay thanks, I will try this guide once I get the chance and report back to you. Just a question though, I'm assuming this guide will still give me Gingerbread at the end of it, correct?
Swetnes said:
One thing just occurred to me you need to stop at step 18 on the unbricking guide. If the KDZ that you are using is one of the v20(x)_00.kdz variants do not use adb to push the recovery.img file this WILL brick your phone and cause the secure boot error this is used to push recovery onto v10(x)_00.kdz only.
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Um, you mean stop at step 18 of the original guide you linked me or the one that KronicSkillz is suggesting? I honestly just use whatever the guide says/provides, I don't bring in any outside files. Previously I mentioned I might use another one because you suggested it would work well for me by keeping ICS. But originally I just follow the guides step by step.
hellored said:
Okay thanks, I will try this guide once I get the chance and report back to you. Just a question though, I'm assuming this guide will still give me Gingerbread at the end of it, correct?
Um, you mean stop at step 18 of the original guide you linked me or the one that KronicSkillz is suggesting? I honestly just use whatever the guide says/provides, I don't bring in any outside files. Previously I mentioned I might use another one because you suggested it would work well for me by keeping ICS. But originally I just follow the guides step by step.
Click to expand...
Click to collapse
At the end you'll end up with AT&T stock gingerbread. in the middle you'll be running a stock korean rom, but that is temporary.
as per your 2nd comment if you resintall stock ICS that will rebrick your recovery and CWM will cause another error if you ever try to run it.
this is the reason your phone had the errors you posted
Secure booting Error!
Cause : boot certification verify
-------------------------
------------------------------
Enter the fastboot...
Enter the fastboot...
Long time no see!
If the whole purpose behind this is you just want ICS why didn't you just run the LG update tool, STOCK ICS can be updated with their stock PC usb tool.
anyways its too late for that.
to save your phone you have to follow that guide to restore it to original AT&T Gingerbread. then you perform a backup with CWM and THEN you can flash whatever ROM you want on your phone be it custom or Stock ICS. I have a feeling flashing the stock ics might rebrick your recovery though. not 100% sure on if it will or not.
---------- Post added at 01:24 PM ---------- Previous post was at 01:22 PM ----------
as per your question about which guide, i think we both linked you the same guide, except the one i linked was the Sticky version that was a little more detailed (i think) but in either case you should pick one guide and stick to it don't read both of them and go back and fourth you could get easily confused even though like i said i think they are the same guide/method of unbricking. There is a reason though that the guide i linked is the TOP STICKY on the forums for this phone. Because it is the solution to unbrick all p930s who have gotten bricked, which is almost anyone who updated their phone since they bought it, a few ppl got lucky and had Roms old enough that LG hadn't locked their recovery yet and they didn't get the error you were seeing.
The only reason I suggested stopping at step 18 was because it seemed like the v20f kdz file was being installed instead of the v10f because of the secure boot error. V20f is ICS, there is no logical reason why v10f is generating the error. Which kdz file are you flashing during that step in the guide?
Sent from my LG-P930 using xda app-developers app

[GUIDE] The easiest way to install CWM in ICS (no unbricking needed)

NOW YOU CAN INSTALL CWM DIRECTLY FROM ICS
INSTALL AN UNLOCKED BOOTLOADER WITHOUT UNBRICKING​
A few months ago I found this thread on XDA :http://forum.xda-developers.com/showpost.php?p=42657066
This thread provided a way to install CWM from Jellybean V30C for the SU640 without unbricking the phone first. Now not exactly the same, the phones are close enough that it peaked my interest. Digging into it I discovered that the partition mmcblk0p7 contains the bootloader, and it was as simple as pushing the unlocked bootloader from Gingerbread to the correct partition, therefore bypassing the entire need to unbrick the phone first and thus allowing the install of CWM.
So I got brave enough and installed the P936 v10i Gingerbread ROM and used the command in ADB shell to extract the bootloader:
dd if=/dev/block/mmcblk0p7 of=/sdcard/bootloader.img. After this I restored my phone completely to stock. Rooted using the root at the above link, then ran my batch file and I had CWM no Security Error!!
The steps are simple:
Start with stock ICS (any version, carrier or phone version p93x). v20c, v20d, v20e, or v20f.
1. ROOT PHONE with the root from the above link or any method that works for you.
2. Run my batch file.
3. Install a custom ROM.
Before anyone asks me I used v 6.0.1.5 TOUCH for CWM. There are actually several reasons why. For me v 6.0.4.5 was incompatible with any ROM with kernel version 3.4. Also if I would initiate a backup from the Rom Manager app, CWM couldn't locate the backup directory.
ENJOY
:victory:
First this only is recommended for LG's Nitro HD models P930, P935 & P936. I do not recommend installing on the SU640 or LU6200.
Thnks!
Worked like a charm! (the second time lol)
I've been waiting for an easy workaround like this, you're great!
Awesome work.
Where did you get CWM 6.0.1.4? Is it the recovery.img located in the zip in the OP? I have two P930s and both have 6.0.4.5 installed. On one, I can get into recovery without a problem, the other one can't.
Thanks
audit13 said:
Awesome work.
Where did you get CWM 6.0.1.4? Is it the recovery.img located in the zip in the OP? I have two P930s and both have 6.0.4.5 installed. On one, I can get into recovery without a problem, the other one can't.
Thanks
Click to expand...
Click to collapse
Hereric's guide.
http://forum.xda-developers.com/showthread.php?t=2044645
And yes it's the recovery.img
Sent from my LG-P930 using xda app-developers app
Swetnes said:
Hereric's guide.
http://forum.xda-developers.com/showthread.php?t=2044645
And yes it's the recovery.img
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Thank you.
audit13 said:
Awesome work.
Where did you get CWM 6.0.1.4? Is it the recovery.img located in the zip in the OP? I have two P930s and both have 6.0.4.5 installed. On one, I can get into recovery without a problem, the other one can't.
Thanks
Click to expand...
Click to collapse
You know what, I had a typo and will fix, it should have been....6.0.1.5 and not 6.0.1.4. Sorry I was going off of memory.
Sent from my LG-P930 using xda app-developers app
UP...!!!!
Thanks GOD I found this thread.. I was going to have CWM with Hereric's method
I am really greatfull for this... thank you.
Awesome - Very easy , just 3 steps to install CMR
Thank you:good:
Thank's for this method... but i have a question... this will work on ics 4.0.3 v18f rooted? I have this version installed on my P930
nesti123 said:
Thank's for this method... but i have a question... this will work on ics 4.0.3 v18f rooted? I have this version installed on my P930
Click to expand...
Click to collapse
Yes it will work since it replaces the locked boot loader with an unlocked one.
Sent from my LG-P930 using xda app-developers app
I cant get this to work on my lg. for some reason it just keeps saying the system cannot find the path specified. Im rooted and have all the drivers installed but no luck. any suggestions?
This worked for me first try!! Good job man:highfive:
JugRKnoT said:
I cant get this to work on my lg. for some reason it just keeps saying the system cannot find the path specified. Im rooted and have all the drivers installed but no luck. any suggestions?
Click to expand...
Click to collapse
May have something to do where it is stored on your C drive. Try copying the folder to the root directory on your C drive and running the batch file with administrator permissions.
Sent from my LG-P930 using xda app-developers app
how to boot to recovey with the smartphone off? (i try vol up+ power and dont go to recovery, power and doesnt goes)
pmaioli said:
how to boot to recovey with the smartphone off? (i try vol up+ power and dont go to recovery, power and doesnt goes)
Click to expand...
Click to collapse
With the phone off, hold down volume down and power till you get white text. Then follow the directions on the screen.
Sent from my LG-P930 using xda app-developers app
Swetnes said:
With the phone off, hold down volume down and power till you get white text. Then follow the directions on the screen.
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
ooh bro, thank you! im very thankful for yout work, a very easy mode to get recovery!
pmaioli said:
ooh bro, thank you! im very thankful for yout work, a very easy mode to get recovery!
Click to expand...
Click to collapse
I never managed to get into recovery with the phone off. If I long press volume down with power button I get the message if I want to permanently erase everything (factory reset) and if I long press volume up with power I get into download mode.
(using lg nitro hd, cm 10.2.1, unbricked and rooted using hereric's guide, and I have latest cwm installed)
Truepeace said:
I never managed to get into recovery with the phone off. If I long press volume down with power button I get the message if I want to permanently erase everything (factory reset) and if I long press volume up with power I get into download mode.
(using lg nitro hd, cm 10.2.1, unbricked and rooted using hereric's guide, and I have latest cwm installed)
Click to expand...
Click to collapse
That is exactly the message that you want. Press power button twice and you will be in CWM. It says factory reset because that is what will happen if you didn't have a custom recovery installed, no worries though.
Sent from my LG-P930 using xda app-developers app
I do not remember which technique I used to root my phone, but it is rooted and currently running sphinx. Can I just flash the bootloader on my phone as is ? or do I need to revert to stock first ?
notzippy said:
I do not remember which technique I used to root my phone, but it is rooted and currently running sphinx. Can I just flash the bootloader on my phone as is ? or do I need to revert to stock first ?
Click to expand...
Click to collapse
Yes you can flash directly, since it only flashes the boot loader and recovery it will not touch your ROM.
Sent from my LG-D800 using xda app-developers app

I have root access but lack the ability to boot to recovery!

I'm currently running the stock Rom with build E98020h. I have successfully achieved root access and have verified it through several apps, and also have supersu installed and seemingly operating fine. I have tried using the 'g pro kitkat recovery' app to flash the recovery, and also freegee but freegee at the opening screen says my device is unsupported. When i go into rom manager v5.5.3.7 and try install a custom rom or even just tap boot to recovery i get an error at the loading screen with the LG logo and it sits there. Am i doing something wrong or is the 20h update keeping me from being to successfully reach recovery? Any insight is greatly appreciated.
Sent from my LG-E980 using XDA Free mobile app
Same method worked on my 20g....not sure about 20h
Sent from my LG-E980 using XDA Free mobile app
aidenthefirst said:
I'm currently running the stock Rom with build E98020h. I have successfully achieved root access and have verified it through several apps, and also have supersu installed and seemingly operating fine. I have tried using the 'g pro kitkat recovery' app to flash the recovery, and also freegee but freegee at the opening screen says my device is unsupported. When i go into rom manager v5.5.3.7 and try install a custom rom or even just tap boot to recovery i get an error at the loading screen with the LG logo and it sits there. Am i doing something wrong or is the 20h update keeping me from being to successfully reach recovery? Any insight is greatly appreciated.
Sent from my LG-E980 using XDA Free mobile app
Click to expand...
Click to collapse
20h may be blocking you off...
You could try using LG Flash Tool to go back to stock 4.1.2 (E98010k) and then using FreeGee to bypass and go from there. But idk if that'll work.
aidenthefirst said:
I'm currently running the stock Rom with build E98020h. I have successfully achieved root access and have verified it through several apps, and also have supersu installed and seemingly operating fine. I have tried using the 'g pro kitkat recovery' app to flash the recovery, and also freegee but freegee at the opening screen says my device is unsupported. When i go into rom manager v5.5.3.7 and try install a custom rom or even just tap boot to recovery i get an error at the loading screen with the LG logo and it sits there. Am i doing something wrong or is the 20h update keeping me from being to successfully reach recovery? Any insight is greatly appreciated.
Sent from my LG-E980 using XDA Free mobile app
Click to expand...
Click to collapse
aidenthefirst, or anyone else....
You ever figure out how to load recovery on the 20h update? Id also like to install CWM or TWRP without having to roll back to 20g.
Thanks.
Jasbo said:
aidenthefirst, or anyone else....
You ever figure out how to load recovery on the 20h update? Id also like to install CWM or TWRP without having to roll back to 20g.
Thanks.
Click to expand...
Click to collapse
I don't think that's possible. You're going to have to flash back to an older version using lg flash tools. If you need to back up anything like texts and contacts, use G Cloud. If you need game data/other data related to specific apps backed up, use Helium. If you're attached to stock try flashing a stock ROM, it will be very similar to your experience now. That'll ensure you get the latest KitKat and still get stock experience... you can always go AOSP too.
thanks... I was hoping to just not have to Flashtools my phone again =P and since its been a while since I checked the forums I wasnt sure if 20h was sorted out yet or not.
Jasbo said:
aidenthefirst, or anyone else....
You ever figure out how to load recovery on the 20h update? Id also like to install CWM or TWRP without having to roll back to 20g.
Thanks.
Click to expand...
Click to collapse
I found the way to do it without having to roll your system back to anything older than 20h. Let me type it all up And make sure I have the proper links and app names and will post in a bit
Sent from my LG-E980 using XDA Free mobile app
OK so after you achieve root access on your phone download the apk in the link below. Install it open it and run it. You should now be able to have full recovery access...
Sent from my LG-E980 using XDA Free mobile app
So apparently I haven't posted enough in threads to attach a link from outside this site. PM me for the link.
Sent from my LG-E980 using XDA Free mobile app
This is the link i found to download the app I used on my e98020h to unlock recovery. I hope it works as well for you all as it did for me.
https://drive.google.com/file/d/0B4vSbKccbcIOV1NjMDlqWUdmVm8/preview?pli=1
Sent from my LG-E980 using XDA Free mobile app
So I'm running into another problem and after a lot of 'googling' I can't find an answer. But running purely stock unrooted and my SD card reads and writes fine. Now that I have rooted and fully obtained recovery access my phone will not recognize much less use it. Any suggestions?
Sent from my LG-E980 using XDA Free mobile app
aidenthefirst said:
This is the link i found to download the app I used on my e98020h to unlock recovery. I hope it works as well for you all as it did for me.
https://drive.google.com/file/d/0B4vSbKccbcIOV1NjMDlqWUdmVm8/preview?pli=1
Sent from my LG-E980 using XDA Free mobile app
Click to expand...
Click to collapse
I found this elsewhere trying to unlock my e980 that was on 20h when I got it.
OK so I found that G Pro KK recovery elsewhere and installed it but wasn't sure what to do from there.. Which option did you choose when running it? Flash recovery, reboot, or reboot recovery? I tried to reboot to recovery and I got into a CWM recovery, but at that point wasn't sure if I was really there or if I needed to flash the recovery from there or from the app.
I'm dying to get rid of the stock ROM on this thing but there are more steps involved than my previous devices.
Thanks!
volkey said:
I found this elsewhere trying to unlock my e980 that was on 20h when I got it.
OK so I found that G Pro KK recovery elsewhere and installed it but wasn't sure what to do from there.. Which option did you choose when running it? Flash recovery, reboot, or reboot recovery? I tried to reboot to recovery and I got into a CWM recovery, but at that point wasn't sure if I was really there or if I needed to flash the recovery from there or from the app.
I'm dying to get rid of the stock ROM on this thing but there are more steps involved than my previous devices.
Thanks!
Click to expand...
Click to collapse
All the APK does as I have found out is 'unlocks' the recovery access. After I ran that app I installed Freegee from the app store and installed the CMW recovery from there just to make sure it all was installed and correctly accessible. at that point you just need to download the ROM that you are intending to install and download it. put the zip somewhere in your directory. boot to recovery wipe the necessary mediums and then install from the app and CWM will take care of the rest. Most of the forum threads that have the links to the ROMs will have full instructions on how to install that certain ROM. I can supply links to some if need be. NOT MY THREADS but ones I found helpful.
aidenthefirst said:
All the APK does as I have found out is 'unlocks' the recovery access. After I ran that app I installed Freegee from the app store and installed the CMW recovery from there just to make sure it all was installed and correctly accessible. at that point you just need to download the ROM that you are intending to install and download it. put the zip somewhere in your directory. boot to recovery wipe the necessary mediums and then install from the app and CWM will take care of the rest. Most of the forum threads that have the links to the ROMs will have full instructions on how to install that certain ROM. I can supply links to some if need be. NOT MY THREADS but ones I found helpful.
Click to expand...
Click to collapse
installing the ROM isn't an issue for me, it's getting the recovery installed.
What process did you do after starting up the G Pro Recovery app? install recovery, reboot, then run freegee?
volkey said:
installing the ROM isn't an issue for me, it's getting the recovery installed.
What process did you do after starting up the G Pro Recovery app? install recovery, reboot, then run freegee?
Click to expand...
Click to collapse
Yes. Open and run the G Pro Recovery app, once that is done you need to reboot. Install Freegee and open it. I installed CWM. You can use whatever you want. Then I reboot again, once the phone comes back up I used clockwork mods recovery manager to get in and out of recovery. Also, I pulled my SD card out of the phone prior to rooting as I would lose access to it after I did the process. So just to be safe you might want to do that.
Sent from my LG-E988 using XDA Free mobile app
aidenthefirst said:
Yes. Open and run the G Pro Recovery app, once that is done you need to reboot. Install Freegee and open it. I installed CWM. You can use whatever you want. Then I reboot again, once the phone comes back up I used clockwork mods recovery manager to get in and out of recovery. Also, I pulled my SD card out of the phone prior to rooting as I would lose access to it after I did the process. So just to be safe you might want to do that.
Sent from my LG-E988 using XDA Free mobile app
Click to expand...
Click to collapse
OK, thanks.
Which root?
aidenthefirst said:
[OP]
Click to expand...
Click to collapse
Which root did you use?
Once you take the update then root your device again you have to do a factory reset on your phone in order to flash a recovery. Currently running E98020I, been there, done that! G Pro KitKat then FreeGee. Mic check 1 2, 1 2
LowVolume said:
Which root did you use?
Click to expand...
Click to collapse
Roottool is an easy way to go Amigo
volkey said:
I found this elsewhere trying to unlock my e980 that was on 20h when I got it.
OK so I found that G Pro KK recovery elsewhere and installed it but wasn't sure what to do from there.. Which option did you choose when running it? Flash recovery, reboot, or reboot recovery? I tried to reboot to recovery and I got into a CWM recovery, but at that point wasn't sure if I was really there or if I needed to flash the recovery from there or from the app.
I'm dying to get rid of the stock ROM on this thing but there are more steps involved than my previous devices.
Thanks!
Click to expand...
Click to collapse
If you just want to install the recovery, get an app call flashify from the play store. Install the app, then download and then flash the twrp .IMG file that you've gotten from this thread: http://forum.xda-developers.com/showthread.php?t=3144369

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