Specifications

iPhone 4 Troubleshooting — General Troubleshooting 32
2012-02-21
Procedure:
Use the following steps to place a device into recovery mode. If the device is already in
recovery mode, start at step 6.
1. Disconnect the Dock Connector to USB Cable from the device, but leave the other end of
the cable connected to the computer’s USB port.
2. Turn o the device: Press and hold the On/o button for a few seconds until the red slider
appears, then slide the slider. Wait for the device to turn o.
• If you cannot turn o the device using the slider, perform a Reset: press and hold the
On/o button and Home button at the same time. When the device turns o, release
the buttons. Press and hold the Home button while reconnecting the USB cable to the
device. Continue holding the Home button.
3. While pressing and holding the Home button, reconnect the USB cable to the device. When
you reconnect the USB cable, the device should power on.
Note: If you see the “battery trap” image at left, let the device charge for at least 10 minutes
to ensure the battery has some charge, and then repeat step 2.
4. Continue holding the Home button until you see the “Connect to iTunes” screen at left.
When this screen appears you can release the Home button:
5. If necessary, open iTunes. You should see an alert that iTunes has detected a device in
recovery mode.
6. Use iTunes to restore the device.
If you don’t see the “Connect to iTunes” screen, try these steps again. If you see the “Connect to
iTunes” screen but the device does not appear in iTunes, refer to Apple Support articles:
• TS1591: iOS: Device not recognized in iTunes for Mac OS X
• TS1538: iOS: Device not recognized in iTunes for Windows
If you decide not to do a restore, you may be able to escape by resetting the device.