Hi, I've scoured the forum but I can't seem to find anything that answers my questions.

Unfortunately, I stupidly (accidentally) updated 2.2 firmware to 2.2.1. My sim card could no longer be identified. Desperate, I activated my phone with a prepaid AT&T sim card I had on me. The latest back up on my iTunes for my phone has the American number registered, along with all the files on my iPhone.

I downloaded Quickpwn 2.2.5 because it's said that it can unlock this new firmware. Everything went smoothly, but like when I first got my phone, I can't make or receive calls (immediate failure) and I would like to do it on my own if possible (since I'm tight on cash right now).

Question 1: How can I enable calls on my iPhone?

Question 2: Can I restore my latest back up after fixing this issue, or will I have to input everything from scratch?

Thanks very much.

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Added on February 5, 2009, 6:22 pmOh, just to add, I can surf the internet and access every other part of my iPhone. The dialer doesn't freeze up on me or anything; I just have No Service and cannot make calls at all.

SO THIS IS NOT FALSE HOPE. AT LEAST THEY TRIED AND GET IT WORKING.
Just to let you know - I have unlocked, jailbreak and customized 5 iPhone 3G and 8 iPhone 2G over the last 4 months for friends & relatives for free. I am also a registered Apple iPhone Applications developer on iPhone applications as a part-time basis and also work on cracking some of the paid applications on Cydia & Applestore for my own personal use.