I
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Hi, some background information: My friend had gotten an iPhone 3GS refurbished and it wasn't locked and worked fine. She was going to give it to me so she reset it, which I think triggered a carrier lock. The phone required a sim card to activate, and it said the sim I put in it (the same carrier she was using with it) wasn't supported. I called Apple and apparently it's locked to some japanese carrier.
What I've done so far: I followed a guide on jailbreaking / unlocking. I used redsn0w and changed the ios to 6.1.6, downgraded the baseband to 5.13.04, and installed ultrasn0w through Cydia. Also the phone uses the old bootrom. Now the phone goes past the initial setup screen and I can use apps, but it still says "No Service" at the top left and I can't send texts or make calls. I just bought the sim card.
I really appreciate any help, it would be a big deal if I actually get this phone to work.
What I've done so far: I followed a guide on jailbreaking / unlocking. I used redsn0w and changed the ios to 6.1.6, downgraded the baseband to 5.13.04, and installed ultrasn0w through Cydia. Also the phone uses the old bootrom. Now the phone goes past the initial setup screen and I can use apps, but it still says "No Service" at the top left and I can't send texts or make calls. I just bought the sim card.
I really appreciate any help, it would be a big deal if I actually get this phone to work.