Feel the power of your iPhone 4 or 4S.

• Replacement part for the power/lock button.
• External button used to turn on, turn off, and lock the iPhone.

PLEASE NOTE: This is the physical button only and not the switch on the iPhone's power sensor cable.

Typically, users who report problems with the power button have a faulty Power and Sensor Cable. The physical button is usually only replaced if warped or if the loop on the back side breaks off during repair.