My cousin is staying over from Turkey and I bought her an iPhone 3G phone on Saturday with the intention of jailbreaking it, which I did just now.
Her Turkish SIM uses O2 network when she's in the UK. For some reason, O2 is not showing as the carrier when we put the SIM into the jailbroken iPhone 3G and she cannot make any calls.
I tried putting her SIM into my jailbroken 1st gen iPhone and it works fine showing O2 as the carrier with the ability of making calls.
Anyone know why this is?