So looks like the tweak was updated since the post yesterday and it indicated iPhone 5 GSM 6.1 was supported. I tried installing and it works great.
The problem is the carrier bundle. Before the apns setting in the plist file was a dictionary with 4 values. Typemask were simple values in the stock ATT bundle but now they look like this:
32,791
0
0
32,790
Does this make any sense? Last time I was able to remove the 4th group and put in 49, 2, 4 for phone, acds.voicemail and wap.cingular.
It seems the iPhone 5 bundle is doing server side checks, which after patching the CommCenter you need to remove.
Stolen from Hansooloo:
- Remove the plist file at /private/var/mobile/Library/Carrier Bundles/Overlay directory.
- Remove the "CarrierEntitlements" key and dict.
- 1st "phone" APN with bitmask 55 and 4th "phone" APN with bitmask 54. 2nd and 3rd are bitmask 0.
- Upload file back to /System/Library/Carrier Bundles/iPhone/ATT_US.bundle directory.
- REBOOT!
You may need to reset network settings as well.