iPhone 4 power button help!


macrumors newbie
Original poster
Sep 30, 2012
Hello guys, new member here and looking for some help.

I have an iPhone 4 that's power button is unresponsive. I searched around here and found many posts about this; however, mine is much different.

My power button actually clicks and seems to structurally work fine, but once pressed there is zero response on the iPhone (sleep/on/off).

Could the proximity sensor need changing? Or am I looking at something else here?

Any and all help is appreciated! Thanks.


macrumors 604
Apr 6, 2007
If you press the home button, does it do anything? What about if you call the phone?

If neither work, try holding down the power button and hold button for a few seconds, like you're doing a hard reset. Then try powering up again. I've found the iPhone 4 has a tendency to lock up

If the phone responds to the home button, then there's a problem with your power button.


macrumors 6502
May 8, 2012
United Kingdom
mines kinda the opposite.. the button used to have a click now its like a jammed in button which is really annoying but it still works.


macrumors newbie
Original poster
Sep 30, 2012
Home button works fine. When I call the phone it goes straight to voicemail, but I believe that is because the phone is locked (Craigslist purchase)

I've tried hard restarting, but I'm not getting any response from that power button. Very strange. Like I said its clicking and all, just no response from it being pressed. You guys think it's the sensor? From what I've read it seems like the power sinks down when the sensor needs replacing.

Phone charges, responds to usb when plugged in.

Thanks for the help


macrumors 603
May 31, 2007
Florida, USA
My iPhone 4's power button stopped clicking. You can still make it work by pressing it harder, but it's annoying.

This is the main reason I never sold the phone; I figure I won't get much money for it because of the defect, and it'd be more worth it to just keep as a spare phone in case my 5 gives me trouble.

I opened it up and used an air can to try to blow out the area around the power switch, but it did not fix the issue. So I gave up on it and just left it because my new 5 was arriving in a few days.

I really hope the buttons in the 5 are better made and don't have these issues. Push-switches are really something that we as a society should have perfected by now!
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