Safely Relocking & Updating

[rlich8]

I unlocked a 4gb iPhone for my brother, hes on t-mobile. Contract is up really soon and we want to switch him over to AT&T.

Is there (yet) a way to safely upgrade to 1.1.1 and re-lock the phone so it is in a "virgin" sort of state, so that we can activate it through iTunes and use it on AT&T?

Maybe I can reflash the baseband to the stock firmware and then upgrade? Ideas?

Thanks!

[zozodouce]

dude tell your brother not to waste his time with AT&T,stay with t-mobile they are a better companies and they dont disconnect you phone if you late on your payment.AT&T dont play when it comes to their money for now if i was you i would leave the phone alone until there is a fix for it.

[Murfunit]

I unlocked a 4gb iPhone for my brother, hes on t-mobile. Contract is up really soon and we want to switch him over to AT&T.

Is there (yet) a way to safely upgrade to 1.1.1 and re-lock the phone so it is in a "virgin" sort of state, so that we can activate it through iTunes and use it on AT&T?

Maybe I can reflash the baseband to the stock firmware and then upgrade? Ideas?

Thanks!

As of this point in time there is no reliable way to relock your phone

[rlich8]

Alright. Guess we'll just have to play the waiting game for a bit. No big deal. Phone works fine.

Thanks guys.

[dsabath]

Has anyone confirmed that the instructions posted here do or do not work?

http://www.tuaw.com/2007/09/24/how-t...rmware-update/

Dan