1, long press the downward volume key of the phone, do not let go, and then connect the phone with the computer USB port with a data cable, and wait for about twenty seconds, the phone will automatically boot up, there will be a startup interface.

2, open the computer's brush wizard utility, utility on the right side of a restart device click, the phone will automatically restart and boot.

3, do not let the phone shut down, as long as it is not shut down, the power button failure will not affect the use of the phone, but we need to pay attention to not let the phone due to low battery, automatic shutdown, so you need to charge the phone as soon as possible in the case of low battery, or equipped with a spare mobile power.

4. Replace your phone's power button yourself.