Q: After backup and restore my iphone still does not recognized the sim card

Hey Aviator560XL,

Thanks for the question. I understand that you are experiencing issues with your iPhone 4 and your SIM card. The following resource may provide a solution:

iPhone: Troubleshooting No SIM

http://support.apple.com/kb/TS4148

1. Update your iPhone to the latest version of iOS.

 

2. Toggle Airplane mode On and Off.

 

3. Try turning iPhone off and then on again.

 

4. Check for a carrier settings update. Tap Settings > General > About. If an update is available, a prompt will appear.

 

5. Remove the SIM Card and verify that it is a valid, carrier-manufactured SIM. Also verify that it is not damaged, worn, or modified. Then reinsert it.

 

6. Restore the iPhone.

 

If you still are unable to resolve this issue, contact Apple support for further assistance.

If your issue persists after completing all of the steps, please follow the last section to contact Apple support.

Thanks,

Matt M.