2023 Update: How to Restart iPhone without Power Button
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Clear back iPhone 4 : r/iphone
![question] iPhone 4 stuck in start up screen, can't force restart it. : r/LegacyJailbreak](https://i.redd.it/0oahxp1f8swa1.jpg "question] iPhone 4 stuck in start up screen, can't force restart it. : r/LegacyJailbreak")
question] iPhone 4 stuck in start up screen, can't force restart it. : r/LegacyJailbreak
iPhone 4S Troubleshooting - iFixit
batteries - How can I disassemble an iPhone 4 battery without damaging it? - Electrical Engineering Stack Exchange
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How to Fix the Battery Draining Issue on Your iPhone After Updating to iOS 6.1.3 « iOS & iPhone :: Gadget Hacks
