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Thread: iPhone 3G No Sim
05-05-2011, 10:48 PM #1iPhone 3G No Sim
I have an iPhone 3G on 4.2.1 with the iPad baseband, and there is a problem. Any sim I put in isn't detected and the phone still says No Sim. The only sim that actually works and doesn't say No Sim is a T-Mobile Sim card. It doesn't even detect AT&T sims. I was wondering if anyone knew why this was happening and/or how to fix it.
05-07-2011, 03:02 PM #2
You have ultrasn0w installed, yes?
Do you get service with that T-Mobile SIM, like can you receive/make calls?
If you can't find the culprit, it's just a matter of restore to custom 4.2.1.
05-13-2011, 03:41 AM #3
05-13-2011, 08:15 AM #4
I've heard from many people that they are having trouble with unlocking with the iPad baseband. Have you tried downgrading to 3.1.3 and seeing if that will work?