Fastboot Mode SONY Xperia X F5121

  1. At the very beginning use the Power key to switch off the device.Hard Reset SONY Xperia X F5121
  2. In the next step press and hold Volume Down button and connect your phone to USB cable.HardReset SONY Xperia X F5121
  3. Well done! You should be in the expected mode right now.
Help! This doesn't work