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My springboard has frozen and the lock button is broken (two months out of warranty and it's not classed as a hardware failure).

How do I restart the phone given that I can't access any apps or settings?

Waiting for the battery to drain will take days, so that's not an option. Is there a way through iTunes to force a reboot or is there a program I can download to force a reboot?

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Make a backup through iTunes, then restore to factory settings? –  Jason Feb 17 '13 at 2:14
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The most obvious answer is to let the phone's battery run out, which will force the device to turn off. –  cksum Jul 7 '13 at 22:56
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12 Answers 12

If you're lucky, you have enabled fast-switching to Assistive touch. Try triple-clicking the Home-button. If there's an option called AssistiveTouch popping up, click it and you'll find where you can put it to sleep or power off by holding the lock screen button.

If not, there isn't really any other options. You could try this tips I got at the Apple Support Disscussion:

You can squeeze (pinch) the Power Button top corner front glass to the back case while pushing the Power Button and the Power Button will usually function.

If you have jailbreaked your iPhone and by chance enabled SSH, you could connect to it and reboot it from there, following this guide.

Barring that, you could run a game or other CPU intensive application like mapping to accelerate the battery drain and get the device to power itself off.

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Go to settings general then accessibility. Turn bold text on and it will reboot your iPhone and fix a springboard crash. I was having the same problem and lucked out and found this!

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This is amazing! A software enforced reboot option on iOS. Thank you for documenting this. Whether or not this "springboard" freezing means that you can't launch the settings app (or get Siri to open the app for you) still makes this a unique thing since iOS doesn't have a restart option anywhere else I know of. –  bmike Dec 24 '13 at 16:35
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But if the springboard is frozen, how do you get to the Settings app? –  timothymh Dec 24 '13 at 21:39
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Enable AssistiveTouch: Tap Settings, General, Accessibility, AssistiveTouch (near the bottom) and tap AssistiveTouch to ON.

You will now notice a small dark square with a circle in the middle (you can move this square anywhere). Tap the dark circle to open the AssistiveTouch menu, then tap Device and tap and hold the Lock Screen icon. This will bring up the iPhone's Power-Off slider - no need for a power button any longer!

I saw this when I was trying to figure out how to turn my phone off and it works!

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The best way to eat the battery is press the Home button until voice option is on and put the music on until it empties the battery.

When iPhone is plugged in when the battery has depleted, it will turn on automatically.

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Wait until the battery drains, and then plug into power adapter to turn it on. Otherwise, reset to factory settings from iTunes if you already had a backup previously.

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If you push the lock button (even though it doesn't work) against a hard surface (I used a counter) and hold home button the phone will reset.

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I stuck it in the freezer for awhile. Makes the battery on my die rather quickly.

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Remove the 2 screws next to the charging port and slide the back off. Carefully pry the battery clip out and your phone will shut off. Plug it back in and your phone will turn on again. NOTE: you can damage your phone if this isn't done correctly. Be careful!

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I read that if you let the battery die it will be forced to turn off and if you plug it in and let it charge it wont be frozen

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My phone has the same problem. I looked it up, and it just said let it die out. So just let it die.

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You can open your iphone, remove your battery and just plug it on again and then connect the usb charger cable and voila, done!

You can see the instructions to remove the battery and plugit in again here: http://www.youtube.com/watch?v=KYvjuWg06l4

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This is an extreme measure; using a mallet for a fly. Removing the battery is far from trivial and doing any type of hardware adjustment is better (read: safer) with the power off. And in the case of the battery, its probably better just to let it drain completely, which will force the phone to power off. –  cksum Jul 7 '13 at 22:53
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or gust press the home button and the power / lock button the same time until it reload. its easy guys!

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Pressing a broken lock button won't really work, now will it? –  bmike Nov 25 '13 at 20:51
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