Hi frnds I'm using iPhone 3gs suddenly my phone is not working as usual suddenly it say i should restore my device so i clicked restore on my pc running on windows 7 but it displays error 21 pls help as soon as possible

iPhone stuck on the "connect to iTunes " screen

Hello shravan vj,
Thank you for the details of the issue you are experiencing with your iPhone.  I recommend the following steps for Error 21:
Check for hardware issues
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 alert when you update or restore, contact Apple support.
Common errors: 1, 10-47, 1002, 1011, 1012, 1014, 1000-1020.
Resolve iOS update and restore errors in iTunes
http://support.apple.com/kb/ts1275
Thank you for using Apple Support Communities.
Best,
Sheila M.

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