Emergency Mode LG Optimus LTE SU640 LU6200

  1. First start LG Mobile update, you can download it from here -> Offical LG site
  2. Next power off your phone without USB cable. Hard Reset LG Optimus LTE SU640 LU6200
  3. Then connect the USB cable and wait for the LG logo and the annimation battery.
  4. After that press Volume Up + Power button 6-7 seconds and wait for the LG logo and the screen turns off. Factory Reset LG Optimus LTE SU640 LU6200
  5. Again pressing Volume Up + Power key 6-7 seconds and wait until the drivers are installed.
  6. Success! You are now in Emergency Mode. Master Reset LG Optimus LTE SU640 LU6200
Help! This doesn't work