This how to video tutorial will teach you how to permanently fix the lock/power button on youriPhone4 when it gets stuck (happens to many iPhone4 users). The button located at the top of the iPhone is generally called by different names such as lockbutton, power button, sleep button and more. This button is used for almost everything, starting from turning off the phone, sending it to the sleep mode, and taking a screenshot. iPhone4 Power & LockButton Replacement: Replace the metal power and lockbutton on youriPhone4. Everything you need to know to DIY (do-it-yourself) repair a stuck or broken power button in youriPhone! The iPhone has been plagued with power button issues since the debut of the iPhone4. iPhone or iPad lock/power button not working? It's a common problem, and even Apple has admitted it. Here's how to fix a broken iPhonelockbutton. The button at the top of myiPhone 4s, commonly known as the lockbutton, power button, sleep button or off button, is broken. It doesn't click at all Mylock/power button is jammed (I think it's jammed it's not pushing down) and it's getting really annoying to use the assistive touch just to lockmy screen. If you can't do it you can always get a digital lockbutton on youriphone by going to Settings->General->access How can I fix a broken lockbutton on an iPhone4? If you dismassembled your iPhone yourself, the warantee may not work. Even if you can manually click on the sensor cable, it can and is certainly used and Will no longer work with the button. How to fix a stuck or broken On/Off button on a GSM/AT&T iPhone4. Allyson Kazmucha. They have quality parts, tools, and much more for all yourrepair needs. Phones Four ways to fix an unresponsive iPhone home button. If youriPhonebutton is not responding and you're out of warranty, here are four things you can do to fix it.