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4-inch iPhone released in March 2016 with similar hardware specifications to the 6S. Available in Silver, Space Grey, Gold, or Rose Gold with 16/32/64/128 GB storage options. Model: A1662 and A1723

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iPhone SE Stuck Power Button?

I have a friend with an iPhone SE where It turns on when plugged in and the Apple logo stays on for about 3 minutes 15 seconds before it restarts. I took a look and the power button wiggles a little but does not click. I was thinking the power button is stuck down, causing some sort of issue where it immediately turns off or something along those lines. I was wondering Is this probable? It seems weird that if my assumption is right, that it is taking that long for it to restart. I started to take the phone apart to look at the power button but does that seem like it could be the issue or if not what are things I should be looking for.

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disconnect the power button flex, plug in the charger and if it boots then that was likely the issue

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Thanks for the idea, but it sadly did not work. I guess the issue isn't that the power button is being held down constantly

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@ncoy have you tried a replacement battery as the 1st gen se is pretty old now

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No, I have not. I don't have a spare unfortunately, and it seems like the battery is working at least somewhat. It turns on when plugged in and seems to only turn off when the battery dies. It stays on for a while after being unplugged

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Okay, you've got a valuable clue with the time frame between restarts. If you figure it takes about 15 seconds to boot to the operating system, then that leaves exactly three minutes before it reboots - which just so happens to be precisely the amount of time that elapses between the SOC scanning its sensors.

What I'm pretty sure you'll find is that the processor is finding an unrecoverable error in one of its sensors. The recovery strategy employed by iOS is to restart the processor in hopes that will reset the affected system and allow it to run. That restart mechanism is called a kernel panic, and is logged in the phone so you can find out exactly why it's restarting.

First thing to do is to go to the Analytics page and locate any current panic logs. When you find them, pull up the latest one and either screenshot and/or copy/paste the first page and add it to your question. That page will have the vital information you need to determine why the system is rebooting. Note that it could be related to the power button, but that's far from the only cause.

Adding images to an existing question - iFixit Repair Guide

Go to @flannelist's excellent Wiki article on Kernel Panics and read up on them. Follow the instructions to retrieve the panic log and once we can see it we'll have a much better idea of what you'll need to do to fix your phone.

iPhone Kernel Panics - iFixit

Keep in mind that you've got exactly three minutes to locate the panic log and take your screenshot/text copy, which is very doable.

Update (06/20/23)

Ah, okay so it's not booting; that does change things.

Disconnecting the power button was a good first step and that reminds me of a common problem with the iPhone 7 where it would go into a similar boot loop upon failure of the front camera assembly. So basically I'd suggest disconnecting that and seeing if it affects the boot. If that one doesn't do it, try unplugging everything possible, one at a time, to see if you can isolate the source of the problem.

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I am new to iPhones/ apple products, but doesn't the phone need to be on to look at the logs? Maybe I wasn't clear at explaining, but the Apple logo shows the whole 3 min 15 seconds and seems like it never boots. That's what I mentioned why I am a little suspicious of it being a power button issue because of how long it takes and never boots. I unplugged the power button connector, and it still does the same thing, so my hope was wrong

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@dadibrokeit to me it sounds like all he is getting is the apple logo before it reboots back to the apple logo and not making it into the ios so there would be no way to access the panic log

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Yeah, that's what I figured

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You might need to find a new button because after some time that it could just not work, i don't usually work on hand held devices but that's my idea on what could be wrong

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no point in getting a replacement part if he doesn't know if thats the cause of the issue yet

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N Coy will be eternally grateful.
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