I am from the US and got a legit AT&T Iphone 4 with 4.01 in early August, JB and unlocked with ultrasn0w. It worked fine in China with China Mobile (it showed China Mobile 7.0 carrier profile in settings-general).
Then I needed to do a restore near the end of September; did restore to 4.01 with TU and JB/unlock.
I activated with my AT&T SIM and the Carrier profile was AT&T 7.0 as expected; but when rebooted with China Mobile SIM card the carrier profile remained AT&T 7.0 and not the China Mobile 7.0.
The phone works fine in Beijing but the carrier data portion would not when I am outside Beijing because I could not set the APN setting to "cmnet" because the AT&T profile does not have that option.
Any ideas? could it be because the baseband was not restored due to error 1004 even though it is 01.59.00 from the start? I did not get any errors during the JB process back in August when Apple is still signing 4.01.
I redid the restore several times with the same result. I had to use UT to kick the phone out of DFU mode due to the 1004 error.
Scott
Then I needed to do a restore near the end of September; did restore to 4.01 with TU and JB/unlock.
I activated with my AT&T SIM and the Carrier profile was AT&T 7.0 as expected; but when rebooted with China Mobile SIM card the carrier profile remained AT&T 7.0 and not the China Mobile 7.0.
The phone works fine in Beijing but the carrier data portion would not when I am outside Beijing because I could not set the APN setting to "cmnet" because the AT&T profile does not have that option.
Any ideas? could it be because the baseband was not restored due to error 1004 even though it is 01.59.00 from the start? I did not get any errors during the JB process back in August when Apple is still signing 4.01.
I redid the restore several times with the same result. I had to use UT to kick the phone out of DFU mode due to the 1004 error.
Scott