What Happens When I Get a White Screen on My iPhone?
When it works properly, an iPhone is great to have -- you can keep in touch with your friends, take photos, record videos, listen to music, watch movies and play around with apps. A white screen, however, is a signal that all is not as it should be and there's something wrong with your iPhone. Depending on the cause of the white screen, you may be able to fix the issue by yourself through simple troubleshooting or you might have to take the iPhone to Apple for repairs.
Even if your iPhone is frozen on a white screen, it may still respond to being shut down and restarted. Press and hold the "Sleep/Wake" button for a few seconds, until the red slider labeled "Slide to power off" appears, and slide your finger over the slider to switch off your iPhone. Press and hold the "Sleep/Wake" button again to turn your iPhone back on.
If your iPhone doesn't respond to the shutdown process or still displays a white screen when switched back on, a reset might fix the issue. Press and hold the "Sleep/Wake" button and the "Home" button together for at least 10 seconds, until the Apple logo or a battery symbol appears. If the battery symbol is shown, connect your iPhone to a power socket or to your computer and leave it connected until it's fully charged.
If your iPhone is still unresponsive and displaying a white screen, the last resort before sending the iPhone to Apple for repairs is the restore process. This process restores the iPhone to factory settings, completely erasing all your data and removing any customization you may have made to it. Connect your iPhone to your computer and launch iTunes. Select your iPhone in the list of devices on the left side of the iTunes window, click the "Summary" tab and select the "Restore" option. Select "Back Up" when prompted to create a backup of your data and settings, then select "Restore" to begin the process. After the process is complete, your iPhone will restart and display the Apple logo; keep it connected to your computer until the "Connect to iTunes" screen disappears or the iPhone displays the message "iPhone is activated."
If the normal method of restoring your iPhone doesn't work, you can attempt to restore it in recovery mode. Press and hold both the "Sleep/Wake" button and the "Home" button together for a few seconds, until your iPhone turns off, then release them. Connect your iPhone's USB cable to your computer, but leave the other end of the cable disconnected from the iPhone. Press and hold the Home button and reconnect the USB cable to your iPhone. Continue holding the Home button until the "Connect to iTunes" screen appears, then release the button. ITunes will alert you that it has detected an iPhone in recovery mode. Click "OK" and proceed with the restore process as normal.
If you are unable to restore your iPhone or it's still unresponsive and displaying a white screen after being fully restored, you will need to send it to Apple to be repaired. Enter your iPhone's serial number on Apple's support website to find out whether your iPhone is still under warranty and to arrange for it to be repaired. You can find your iPhone's serial number on the original packaging or, depending on your iPhone's model, engraved on the back of it or printed on the SIM card tray. Remember to remove your SIM card from your iPhone before sending it in for repairs.