The power button is on top of the iPhone 4. You hold down the button to either turn the phone on or off.
Hold the home button and the lock/power button on the top for approximately 10 seconds.
1. Power down the iPhone anyway you can. 2. Connect it to the computer with the usb while holding down the home button. 3. Keep holding until the it says it is in recovery mode. 4. Done
Try resetting your iPhone. Hold Down the Home Button AND the Power button at the same time for 30 seconds
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Try resetting your iPhone. Hold Down the Home Button AND the Power button at the same time for 30 seconds
Hold down the Lock/Power button and the home button simultaneously for a few seconds until the "slide to power off" slider bar comes up. Swipe the red slider button across the bar. The iPhone will turn off. When the screen goes dark, hold the Lock/Power button until the Apple logo shows up.
Simply press the power button (on the side of the phone) and hold it for a few seconds. The iPhone should then boot.
What you do is you go and plug up ur iPhone to the iTunes and click on the update button
The easiest way someone can find an instruction to install a home button is using Youtube. There are other websites like Ifixit which explain installing a home button on the iPhone 4.
Try holding the power button and the home button for roughly 10 to 15 seconds. It should restart.
Try resetting your iPhone. Hold Down the Home Button AND the Power button at the same time for 30 seconds
Make sure it has been on charge for at least an hour then press and hold the menu and power/lock button together for 10 seconds. Your iPhone 4 should then work again. This goes for all iPhones, iPod touches and iPads.