Hi,

I recently purchased a used iphone 4 and its running bb 03.10.01 and it appears to be software unlocked.

I was able to put in my t-mobile sim card, have it recognized and make phone calls with it. No gevey.

Does anyone have any theories on how this one was unlocked? Everything i've found online suggests that 03.10.01 is not software unlockable.

details:
iphone 4
fw 4.2.1
bb 03.10.01
ultrasn0w 1.2.5

Thanks!

prolly a hardware unlock or something.

What's the model number? It could be unlocked by the carrier...