1. First, power up the phone by pressing the Power button.

2. Next, hold down the Power and Volume Down buttons for a moment.

4. Press the Recovery Mode to navigate and Power button to choose in order to select Return to bootloader.


5. Now, in the same way, select Boot to Recovery Mode.

5. Hold down the Power button when an exclamation mark shows on screen. Press Volume Up button once.

6. When in Recovery mode, navigate using Volume buttons and select options with Power button.