オリジナル投稿者： Minho ,
If your iPhone is still under warranty, then the best course of action is to go to the Apple Store for a repair. They will replace the device however so if you don't have a recent backup, then you should consider an independent repair shop as they can repair the device without data loss. If you want to try something yourself, then follow this [guide|83590|guide] to see if the current power button is properly connected. You can also try to replace the [product|IF332-036|Power Button Flex] yourself.