Flashing LG Optimus L3 Stock Firmware


  • Download LG Optimus L3 Stock Firmware
  • Download LG Optimus L3 usb driver
  • Download kdz_update

Instal LG L3 Driver

  1. Just to make sure that the driver is install properly
  2. Connect the device to PC/laptop using USB cable
  3. Select PC Software
  4. Go to menu > settings > application > development
  5. Check on USB Debugging (enable)
  6. At windows, go to device manager and check for installed LG L3 DriverFlashing LG L3

Flashing LG L3

  1. Turn off the device
  2. Press and hold Volume[+] + Menu buttons then push the power button
  3. Hold until it`s vibrate and the this show at your screen
  4. Connect Using USB cable from PC/Laptop to LG Optimus L3
  5. Run kdz_update
    TYPE : 3GQCT
    PhoneMode : Diag
  6. Click at KDZ File then find and select the Stock Firmware
  7. Click “Launch Software Update” and wait until the device reboot
  8. Done


  • if you choose DIAG, do factory reset after flashing
  • Diag : reformat
    CS Emergency : Only fix file system without wipe data, in this case L3 will become unroot

Download LG firmware from here

Do With Your Own Risk

Download Support Files

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