[Q] Unrooted my phone by accident and it can't boot now

[hamisgood]

Hi guys, skipping the introductions, I somehow unrooted my F320S (I have no idea how!) and am currently unable to use even the download mode to get back to stock ROM.

Technical details:
F320S, Korean LG G2.
Was rooted since October
Lao Hong rom (before the upgrade)


The story behind it:
1) I upgraded my phone to 4.4 on "Rom VDT-V9 Cho LG G2 4.4 Kitkat" and found myself unable to access the recovery menu. I thought it was an outdated TWRP (2.6.3.2) causing the inability to access the recovery and decided to flash CWM (6.0.4.4), but was still unable to access the recovery. Even though I had flashed CWM, it did not cause any problems as I used the phone as normal during the week up until today.
2) Wanting to remove the navigation bar, I messed with the build.prop file and caused the system to "brick", and being unable to access recovery, I went to download mode (yes this isn't the first time I bricked the G2) and went through the mobile support tool hoping to revert to stock.
3) However, I got stuck in a bootloop on the boot animation screen and read on a reply to the thread (http://forum.xda-developers.com/showpost.php?p=49822996&postcount=1794&nocache=1&z=448867873440083) to do a hard reset on the device (Press vol down and power, then press power when the LG logo shows) but the confirmation failed to appear.
4) Now, I'm stuck in an endless bootloop, unable to access recovery (as I suddenly became unrooted) or do a hard reset (hard keys do not work) and unable to use the download mode to revert to stock (endless boot loop after the upgrade completes).

edit: It seems like when I'm doing the upgrade in download mode, the phone finishes the upgrade before the mobile support tool. I don't remember this happening last time I did it...

 

[staticx57]

Hi guys, skipping the introductions, I somehow unrooted my F320S (I have no idea how!) and am currently unable to use even the download mode to get back to stock ROM.

Technical details:
F320S, Korean LG G2.
Was rooted since October
Lao Hong rom (before the upgrade)


The story behind it:
1) I upgraded my phone to 4.4 on "Rom VDT-V9 Cho LG G2 4.4 Kitkat" and found myself unable to access the recovery menu. I thought it was an outdated TWRP (2.6.3.2) causing the inability to access the recovery and decided to flash CWM (6.0.4.4), but was still unable to access the recovery. Even though I had flashed CWM, it did not cause any problems as I used the phone as normal during the week up until today.
2) Wanting to remove the navigation bar, I messed with the build.prop file and caused the system to "brick", and being unable to access recovery, I went to download mode (yes this isn't the first time I bricked the G2) and went through the mobile support tool hoping to revert to stock.
3) However, I got stuck in a bootloop on the boot animation screen and read on a reply to the thread (http://forum.xda-developers.com/showpost.php?p=49822996&postcount=1794&nocache=1&z=448867873440083) to do a hard reset on the device (Press vol down and power, then press power when the LG logo shows) but the confirmation failed to appear.
4) Now, I'm stuck in an endless bootloop, unable to access recovery (as I suddenly became unrooted) or do a hard reset (hard keys do not work) and unable to use the download mode to revert to stock (endless boot loop after the upgrade completes).

Try this...Hold the vol down and power and have it reboot at which point hold just the power button till it turns off. At that point try the volume down power till LG logo and then just power and see if that lets you access the recovery. I fought many times with the buttons to try and get into recovery and the easiest way was always with the phone off to start with.

 

[hamisgood]

Try this...Hold the vol down and power and have it reboot at which point hold just the power button till it turns off. At that point try the volume down power till LG logo and then just power and see if that lets you access the recovery. I fought many times with the buttons to try and get into recovery and the easiest way was always with the phone off to start with.

I've been trying to get into hard reset this way for the past hour or so, but I think it might be a different key combination for the Korean models? Accessing recovery mode was vol up+power for mine too. I tried with both vol up and vol down, holding vol down all the way and releasing it after the lg logo boots, but i still have yet to find the right combination.

Thankfully I'm not fully crippled as I have my trusty S3, but I'd like to get the G2 up and running.

 

[hamisgood]

Just wondering if the fact that it was unsyncronized while in download mode affected anything? My G2 shut off before the download mode was at 100% complete, and I don't recall that happening the last time I used download mode to unbrick my phone.