Originally Posted by
Yaatri
I have a similar question too. My son got a jailbroken iPhone from one of his friends, who was using a Tmobile SIM in it. My son tried to update the software or firmware (not sure which) on it, which appeared to have reduced its phone functionality. He was able to restore to the earlier version but now it's locked. Is there a way to firmware it again?
probably not. it depends what he did. jailbreaking and unlocking relies on specific firmware and baseband versions and not all versions can be jailbroken and/or unlocked. if he updated it without taking measures to preserve the unlockable baseband (and that is what it sounds like), then it's locked until a new unlock is found, which might be a while, if ever.
what version is on there now and how did he update it?