Before proceeding, please back up any important data to your Google account, an external SD card, or a computer. This is the recommended method if you can still unlock your phone and navigate the menus.

Scroll down and tap System (located near the bottom of the list).

Press the Power button once to select that option.

Once the reset is complete, the word Data wipe complete will appear. The menu will return to the main Recovery Mode screen, with Reboot system now highlighted.