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Restore stock recovery / unroot without restore

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crawlgsx
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(Last edited by crawlgsx; 16th May 2014 at 01:05 AM.)
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Default Restore stock recovery / unroot without restore

Good Evening,

AT&T LG G2 rooted, TWRP. Have installed a few different roms but mostly used PA. All of a sudden the phone started experiencing issues with cell Data. So I did a clean install of PA and then had issues with BT, did another clean install and had issues with Wifi.

So I decided ok maybe its time to go back to stock. Hook it up to a win7 computer... Device manager doesn't see it at all (doesn't show up AT ALL). Says charging and that is it, does not recognize that it is hooked up to a computer. Have tried several different computers now and several different USB cables. The only way I could try other roms was downloading via wifi. Tried a stock rom and still experiencing issues.

I think there is something wrong with the phone so I want to get it warrantied, but without hooking it up to a computer I can not figure out any way to remove the custom recovery or revert it to stock.No matter what I do no computer will even recognize the phone is connected, let alone trying to install drivers. Device manager just straight up does not see it.

Any help or suggestions is GREATLY appreciated. Any way to remove recovery/root without a PC connection?

UPDATE: Here was my solution

Took some work but I figured out a way to do it in case anyone else ever runs in to this:

(make sure you are stock rom or on a stock rooted rom before proceeding)

First download the stock recovery.img on the device.

http://downloads.codefi.re/autoprime...10B_Partitions

Then download/open Terminal Emulator and type:
su
Then
cd /sdcard/downloads
Then
dd if=/sdcard/downloads/recovery.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery

That replaces TWRP/CWM with the stock recovery.

Then open supersu, go to settings, towards the bottom is full unroot.

Yay no more custom recovery or root on stock rom.
Chris D.
AT&T | BB Z10
Previously - LG G3, HTC One M8 ,LG G2, Nexus 5, HTC One, BB Z10, Note II, Nexus 4, Nokia Lumia 920, ATT GS3, Note N7000, Skyrocket, Infuse 4g, Inspire 4g , Atrix 4g, iPhone 4, iPhone 3gs, iPhone, HTC 8525, many dumb-phones.
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XxZombiePikachu
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If you are planning on getting warranty you need to use download mode and the back to stock guide also that is the best way to flash to stock and get rid of problems

Sent from LG-G2 D800 on AEONFLEX 4.4.2
 
crawlgsx
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Quote:
Originally Posted by XxZombiePikachu View Post
If you are planning on getting warranty you need to use download mode and the back to stock guide also that is the best way to flash to stock and get rid of problems

Sent from LG-G2 D800 on AEONFLEX 4.4.2
Agreed, problem is the computer will not see the phone, so I can't use the program to flash it back to stock.

It's not just a driver or com issue, the computer does not see it AT ALL. Device manager doesn't see a new device when I plug it in (in OS, in Download mode, nothing).
Chris D.
AT&T | BB Z10
Previously - LG G3, HTC One M8 ,LG G2, Nexus 5, HTC One, BB Z10, Note II, Nexus 4, Nokia Lumia 920, ATT GS3, Note N7000, Skyrocket, Infuse 4g, Inspire 4g , Atrix 4g, iPhone 4, iPhone 3gs, iPhone, HTC 8525, many dumb-phones.
 
XxZombiePikachu
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Quote:
Originally Posted by crawlgsx View Post
Agreed, problem is the computer will not see the phone, so I can't use the program to flash it back to stock.

It's not just a driver or com issue, the computer does not see it AT ALL. Device manager doesn't see a new device when I plug it in (in OS, in Download mode, nothing).
Have you tried different usb ports also very important are you using original cable that came with the phone in my case if I try many of the different cables I have, only the stock one works for download mode

Sent from LG-G2 D800 on AEONFLEX 4.4.2
 
crawlgsx
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Quote:
Originally Posted by XxZombiePikachu View Post
Have you tried different usb ports also very important are you using original cable that came with the phone in my case if I try many of the different cables I have, only the stock one works for download mode

Sent from LG-G2 D800 on AEONFLEX 4.4.2
Different usb ports, different computers, different cables (stock one included). No luck. Phone says download mode then goes to "firmware update" and says at the bottom B53 then "ROOTED" in red letters. Nothing appears in device manager.

In android regarless of rom if I plug it in it doesn't act like I plugged it in to a computer, just charging. Again nothing in device manager regardless of USB debugging or not.

currently have twrp 2.6.3.3, running D80210b 4.2.2, with baseband M8974A-AAAANAZM-1.0.190034
Chris D.
AT&T | BB Z10
Previously - LG G3, HTC One M8 ,LG G2, Nexus 5, HTC One, BB Z10, Note II, Nexus 4, Nokia Lumia 920, ATT GS3, Note N7000, Skyrocket, Infuse 4g, Inspire 4g , Atrix 4g, iPhone 4, iPhone 3gs, iPhone, HTC 8525, many dumb-phones.
 
crawlgsx
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What I really need to know is if there is any way to restore stock recovery and remove root without using that method (ie using Terminal Commands or flashing a package, since I can download via wifi).

I am pretty sure this phone has a messed up USB port, but I don't really want to send it in with it rooted/twrp on it .
Chris D.
AT&T | BB Z10
Previously - LG G3, HTC One M8 ,LG G2, Nexus 5, HTC One, BB Z10, Note II, Nexus 4, Nokia Lumia 920, ATT GS3, Note N7000, Skyrocket, Infuse 4g, Inspire 4g , Atrix 4g, iPhone 4, iPhone 3gs, iPhone, HTC 8525, many dumb-phones.
 
paulthuong
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Quote:
Originally Posted by crawlgsx View Post
What I really need to know is if there is any way to restore stock recovery and remove root without using that method (ie using Terminal Commands or flashing a package, since I can download via wifi).

I am pretty sure this phone has a messed up USB port, but I don't really want to send it in with it rooted/twrp on it .
Did you try restore & reset functionality on the phone? I had somewhat similar issue with the plug & pop feature (although my laptop recognized the phone under Devices & Printer but it didn't show it as a separate drive) when I flashed CM11 but then I did a full factory reset, everything goes back to normal. Also you might try uninstall LG driver and reinstall it. Hope this help.
 
crawlgsx
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Originally Posted by paulthuong View Post
Did you try restore & reset functionality on the phone? I had somewhat similar issue with the plug & pop feature (although my laptop recognized the phone under Devices & Printer but it didn't show it as a separate drive) when I flashed CM11 but then I did a full factory reset, everything goes back to normal. Also you might try uninstall LG driver and reinstall it. Hope this help.
Unfortunately it is not a driver issue, it doesn't show up in device manager at all, on several machines.

I have tried multiple different roms, factory rests, even tried ADB sideloading, no luck.
Chris D.
AT&T | BB Z10
Previously - LG G3, HTC One M8 ,LG G2, Nexus 5, HTC One, BB Z10, Note II, Nexus 4, Nokia Lumia 920, ATT GS3, Note N7000, Skyrocket, Infuse 4g, Inspire 4g , Atrix 4g, iPhone 4, iPhone 3gs, iPhone, HTC 8525, many dumb-phones.
 
paulthuong
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i remember there's this app called Auto Rec that has an option to unroot the device or something like that.
 
crawlgsx
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Took some work but I figured out a way to do it in case anyone else ever runs in to this:

First download the stock recovery.img on the device.

http://downloads.codefi.re/autoprime...10B_Partitions

Then download/open Terminal Emulator and type:
su
Then
cd /sdcard/downloads
Then
dd if=/sdcard/downloads/recovery.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery

That replaces TWRP/CWM with the stock recovery.

Then open supersu, go to settings, towards the bottom is full unroot.

Yay no more custom recovery or root on stock rom. (this was after flashing a rooted stock rom by downloading it on the device itself since I had no USB).
Chris D.
AT&T | BB Z10
Previously - LG G3, HTC One M8 ,LG G2, Nexus 5, HTC One, BB Z10, Note II, Nexus 4, Nokia Lumia 920, ATT GS3, Note N7000, Skyrocket, Infuse 4g, Inspire 4g , Atrix 4g, iPhone 4, iPhone 3gs, iPhone, HTC 8525, many dumb-phones.

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