Can't re-activate my iphone after downgrade to 1.1.1

[newportguy]

Ho guys.
A couple of days ago I downgraded my iphone to firmware 1.1.1 and then was able to download Apptap to it. When it came time to activate the phone I was not able to do it. So I reinstalled 1.1.1 again and still I have not been able to activate. I even got a new sim card from AT&T but after two days the phone is still waiting for activation, even though I got an email from AT&T telling me that it is. I call them up but they can't help help me out. So I' stuck with no phone service. Does anybody know what the problem could be of if I can activate the my phone any other way? I would really appreciate your help.

 

[PatrickC]

Your baseband is still at whatever version you had before you downgraded to 1.1.1. If you upgrade back to 1.1.3 or whatever you were running before, your AT&T service should re-activate.

 

[Consultant]

When you downgrade 1.1.2 to 1.1.1 for jailbreaking, you need to UPDATE to 1.1.2 again to have a working phone. (Make sure you prep for 1.1.2)

 

[newportguy]

Thanks guys

How can I upgrade back to 1.1.2? I don't want to upgrade to 1.1.3 because then I cant download Apptap, or can I?

 

[ntrigue]

You can either Jailbreak then use the just released method to go to 1.1.3 or you have to change your baseband using a utility on Installer. Hackint0sh.org has good instructions.