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06-29-2010, 08:10 AM #1iPhone 3GS and T-Mobile and iTunes
Okay, I've read through a lot of threads and a lot of people are having the same problem but I haven't heard anyone with my specific problem so I hope this doesn't look too much like a re-post but it sort of is.
I just got a 3GS from my boss. I have a T-Mobile SIM card and he took the at&t card that was in it. I have done the jail break but I cannot get it to sync with iTunes because it says the SIM I am trying to activate is no good due to carrier???
I tried restoring back to FW 3.0 as someone suggested in another thread, but Apple wont sign it anymore.
Basically I cannot get past the Sync Screen on the iPhone with the picture of the USB. But it looks like I can make emergency calls.
How do I do a "tethered" boot?
Apparently I have new boot rom too
Last edited by refryguy; 06-29-2010 at 08:10 AM. Reason: Automerged Doublepost
06-29-2010, 08:42 AM #2
If you have a new(er) bootrom you can't unlock yet. Download a program called f0recast. Plug you phone in and run the program. Post what it says here.
06-29-2010, 09:59 AM #3
I get an error message saying the mobile device must be running...but it is on and plugged in.
Okay I finally got FOrecast to work.
Tethered?: Maybe - Depends if Refurbished (Whic its not)
So I take it I'm screwed?
Last edited by refryguy; 06-29-2010 at 09:59 AM. Reason: Automerged Doublepost
06-29-2010, 11:21 AM #4
Yup, you're screwed until a new unlock comes out. Not sure when that will be.
06-29-2010, 01:18 PM #5
What if I could get my hands on an old blank AT&T 3G sim card? Could I do it without having an AT&T service plan?
Is there any way to do it with the hardware instead of software?
Last edited by refryguy; 06-29-2010 at 01:18 PM. Reason: Automerged Doublepost
06-29-2010, 01:20 PM #6
yup, just throw a ATT sim card in there, and plug it into itunes.
Depending on your version, you can use spirit (if your on 3.1.3)
Then unlock with ultrasn0wThe only thing I ask in return for helping, is that you click the thanks button, Thanks!