T-Mobile Jailbroken 4.3.1 Iphone 4, Can I upgrade to iOS5?


macrumors newbie
Original poster
Oct 12, 2011
Hello all,

I'm new here. I was wondering if I could update my originally AT&T iPhone, which was jailbroken to work with T-Mobile, 4.3.1, to iOS5. I'm afraid I'll lose the proper baseband, and will not be able to continue to use the phone on T-Mobile's service.

If not at the moment, will this be a possibility at all?

Any help and advice would be much appreciated!
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