Thursday, March 14, 2013

Back To LG Stock Firmware When Coming From CM10

As Some Users have this problem, and many others of you can have it too, this guide to get back to LG's ICS Firmware when you're coming from CM10.
This also works for Unbricking your device.

Requirements:
  • A Windows Based PC
  • L7 With CM10 on it
  • Homero's V10K with CWM,ROOT and Unlocked Bootloader which you can find here : KDZ Custom ROM  credits to Homero for making the KDZ.
  • KDZ_FLASHER which you can find here.
  • LG USB Drivers Installed.
  • ADB which you can find here.

How To :
  1. Once You've Downloaded Homero's V10K, Extract the ZIP and you will find a .KDZ file.
  2. Now Download KDZ_FW_UPDATE.zip and extract it,then open the folder where you extracted it and Start KDZ_FW_UPDATE_EN with Administrator Rights (Right Click on file and select Run As Administrator)
  3. Once the program started, in Type select 3GQCT and in Phone Mode select EMERGENCY, then in KDZ File select the precedently downloaded Homero's V10K kdz file and press open.
  4. Make Sure your Phone is connected to the computer in EMERGENCY MODE ( Remove the battery from the phone,then while pressing Vol+ Connect the usb to the computer,a yellow screen must come up showing EMERGENCY)
  5. Once you've done this, press Launch Software Update and let it work,the procedure takes about 5-10 Minutes,so don't worry.
  6. At the end of the procedure the phone will reboot and an LG Animated Logo will come up,and after some minutes KDZ_FW_UPDATE Will say you that there has been an error, Don't panic.
  7. With still the phone connected to the PC,Download ADB zip at the end of the post and extract it in your C:/ Drive, then open up CMD and write:
adb devices [enter] (just to make sure that the computer find your phone)
adb reboot recovery [enter]
Now your phone will reboot in CWM Recovery, just do Wipe Data/Cache,Wipe Cache,Wipe Dalvik(Which is situated in Advanced Menu). When you have done this,select Reboot System and wait for your phone to finish the boot.


Thanks To:

  • Homero2 for making the V10K KDZ Flashable with ROOT,CWM and Unlocked Bootloader
  • Wolf80 xda developer member for write this tutorial.