Filed Under (LG Android Phones, LG Optimus Series, LG Phone Problem and Solution) by lg-phones on 21-04-2013

As expected, LG has officially launched the Android 4.1.2 Jelly Bean update for LG Optimus L7 a couple of weeks ago. In this topic, we are going to let you know how to manually update your LG Optimus L7 to the latest V20B firmware. This guide uses the LG update tool. The method is great for getting the latest firmware for your region and still get it rooted.


How to update / Flash LG Optimus L7 Steps:

  1. Download and install the usb driver
  2. Download and extract KDZ_FW_UPD_EN.zip
  3. Launch the program KDZ_FW_UPD.exe
  4. * For an update (Does not delete anything)
    — We connect the phone to PC mode Software LG or PC Suit
    * For a clean installation (It will erase everything, factory reset)
    — Remove the battery to the L7 and while holding the key Vol+ connect the USB to the PC
  5. Type: 3GQCT, PhoneMode: DIAG
  6. Find the ROM XXX_00.kdz
  7. Finally click Launch software update
  8. Enjoy

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