RIFF JTAG – Easy boot repair LG F220K (Optimus GK) supported

12.10.2013  RIFF JTAG – Easy boot repair LG F220K (Optimus GK) supported

Repairing bricked LG F220K with the RIFF Box requires non-beginner soldering skills (since JTAG pads on board are very small and are close to each other).
Phone is auto powered on with USB Data Cable connected to the PC while battery is inserted. Please note, battery must be charged. If battery is not charged enough there is chance of getting 0x42 error during connection stage.

To resurrect LG F220K:

  •  Solder JTAG cable to LG F220K JTAG pads;
  •  Insert USB Data cable into board and PC;
  •  Make sure LG F220K is selected in the list of models;
  •  Click Resurrect button;
  •  Wait till software signals a successful operation completion;
  •  Disconnect power supply, de-solder JTAG wires;

Now phone is in bootable condition, that is, even if it does not start up normally, you can flash it using known flashing methods.