I have a iPhone 4 in recovery mode and it will not restore to factory settings.

Question

I have a iphone 4 in recovery mode and it will not restore to factory settings. I get the error message error 21 and 2001. What can I do? I have tried all the steps.

Answer 1

Alextails998 wrote:
I have tried all the steps.
All what steps?
Did you go through the troubleshooting information here: http://support.apple.com/kb/TS3694?viewlocale=en_US&locale=en_US
Check for hardware issues
Related errors: 1, 3, 10, 11, 12, 13, 14, 16, 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 1000, 1002, 1004, 1011, 1012, 1014, 1667, or 1669.
Try to restore your iOS device two more times while connected with a cable, computer, and network you know are good. Also, confirm your security software and settings are allowing communication between your device and update servers. If you still see the error message when you update or restore, contact Apple support.
and
Check USB connections
Related errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4000, 4005, 4013, 4014, 4016, “invalid response,” and being prompted to restore again after a restore completes.
If there’s an issue with the USB port, cable, dock, or hub, or if the device becomes disconnected during restore, try troubleshooting the USB connection, then troubleshooting your security software.
To narrow down the issue, you can also change up your hardware:
Use another USB cable.
Plug your cable into a different USB port on your computer.
Try a different dock connector (or no dock).
Add (or remove) a USB hub between your device and computer.
Connect your computer directly to your Internet source, with no routers, hubs, or switches.
If you checked your connections and are still seeing the error message, check for hardware issues.
If so, then it's a hardware problem. Make an appointment at the genius bar and get it replaced. Based on the "it was water damaged", I think it's a safe bet that it's toast.