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Tutorial: how to unbrick your phone

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ziiljuks
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(Last edited by ziiljuks; 7th November 2011 at 07:25 PM.)
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Default Tutorial: how to unbrick your phone

Bricked my phone after trying out CM7 and then flashing Stock ROM via KDZ_FW_UPD without wiping all data.
Found a way how to fix my problem. This should work for almost all bricked phones.

Remember, this will wipe ALL DATA from your phone. I'm not responsible if something happens with your P970. Do at your own risk.


You will need:
Drivers for P970;
KDZ_FW_UPD_EN
UpTestEX_mod2_marwin
WindowsEnablerv1.1
Download

Start from here if it's first time (no drivers installed, etc):
1) Install all drivers (from Drivers folder);
2) Disable LGE Virtual Modem (Control Panel > System > Hardware > Device Manager);


Start from here if drivers already installed:
3) Run msxml.msi (in KDZ_FW_UPD folder);
4) Delete mfc42.dll (from KDZ_FW_UPD folder);
5) Run WindowsEnabler.exe and set it to ON;
6) Run UpTestEX_mod2_marwin.exe;
7) Set your phone to S/W Upgrade mode (take out battery, while pressing Volume Up, plug USB cable).



1) Select KDZ file (download from here);
2) Click "CSE web upgrade test", then "Upgrade Start".

Chose your language and wait till phone reboots. It will take some time and could look like nothing is going on. If you see something similar to this (on your phone) for a moment, everything went OK.

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wiqi546
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maaaaaaaaaaaaan em trying it right now.....let u know as soon as i see some results

THANKS!!!!!!!!!!!!!!!!!

---------- Post added at 01:38 PM ---------- Previous post was at 01:07 PM ----------

"YES" it really works!!!

Thanks a billion times man! You saved my life

(for everyone else who is trying to follow this TUT...when i was updating it was stuck at 4% and showed a lot of errors in the log below...but i guess that didnt matter and now it works...that screen at the end is really must...and i had to force close the update tool after my phone was working)
 
radkor
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(Last edited by radkor; 24th September 2011 at 04:13 PM.)
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I think this is solution for ALL BRICKED P970s that can enter into S/W Upgrade mode!!!
Very important is that this method do HARD RESET after flashing firmware so it could UNBRICK ALL of our phones.


Can anyone with bricked phone (not CM7 brick) can test it?
 
ziiljuks
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I a little bit edited tutorial and, yeah, it could help for all bricked phones. We just need someone who could test it out.
 
gabwerkz
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I linked it at RC's G+ and RootzWiki, in response to those bricking their OB's in regards with CM7. Hope they could give us feedbacks.

Sent from my Optimus Black using xda premium
 
quyTam
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cool, finally a method that can do "hard reset" without a running system or a recovery installed !!

LG would have implement the hard reset in his Recovery in the B2CAppSetup ! it would avoid lots of send back to LG customer service !!

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radkor
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Quote:
Originally Posted by quyTam View Post
LG would have implement the hard reset in his Recovery in the B2CAppSetup
No, LG would have implement the recovery key combination... It would be remedy for almost all P970 bricks...
Does anybody knows another phone with Android without hardware key combination for recovery?
Is it even possible that hardware key combination (changing bootloader) will be possible to add-on by official LG firmware update? Maybe they should do this with official 2.3 upgrade, but it is probably only dream...

PS. I forgot to thanx, ziiljuks, you're the man!
 
quyTam
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yes, recovery combination key would be better ^^

ps: I think x8 doesn't have it either
 
murrun
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quote from rootzwiki: "adb.exe reboot recovery saved my life!!!!"

i guess we can boot into recovery with this command. i didn't know that adb environment can run with bootloop or volume up screen... can anybody confirm this?
 
radkor
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(Last edited by radkor; 24th September 2011 at 09:22 PM.)
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Quote:
Originally Posted by murrun View Post
i didn't know that adb environment can run with bootloop or volume up screen
No, it can't. You need to boot to OS and have enabled Debugging to get ADB working.
I was trying it many times when I bricked my phone. Look HERE.

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