updating 9.3.4 and simcard problems

This support document addresses update and restore errors. Get help with iOS update and restore errors - Apple Support

Check for hardware issues

If you see error 53, learn what to do. If you see one of the errors below, you might have a hardware issue:

• 1, 3, 10, 11, 12, 13, 14, 16
• 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 56
• 1002, 1004, 1011, 1012, 1014, 1667 1669

Here's what to check:

1. Make sure that you have the latest version of iTunes.
2. Check for issues with third-party security software.
3. Make sure that your USB cable, computer, and network are reliable. Then try twice more to restore your iPhone, iPad, or iPod.
4. If you still see the error message, you can check for outdated or modified software or contact Apple Support.

Check the troubleshooting steps for that error, but watch, as a -1 error is generally a hardware fault.

-1 or 1, same thing.

If you look carefully at step 4, the final step is to contact Apple Support.

I understand that you tried the others and they did not work. Then you need to try the last one, that is why it is last, so that if nothing else works, then you resort to that one.

You're welcome.

You're welcome.