1. Turn off the LG OPTIMUS G PRO E988 ,E985 ,E980 , F240 , L-04E
  2. Make sure the battery LG OPTIMUS G PRO E988 , E985 , E980 , F240 , L-04E already full or more than 50%
  3. Press together and hold the Power Button + Volume Down Button
  4. If the Logo appear, then release the button, after that we will enter some menu
  5. Choose Factory Reset using Volume Button, and press Power Button to Enter or OK
  6. The LG OPTIMUS G PRO E988 ,E985 , E980 , F240 , L-04E will continue master reset, wait for several minutes until the the phone start like new again.

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