Hello everyone new to the site thanks for having me. Anyway I'm having an issue with trying to switch the data carrier on an
Iphone 3G

The phone is jailbroken
the Carrier is Chatr and tethering is there but I seem to be locked out of the APN settings when I try to set up tethering it says to contact Rogers Ive tryed using openSSH and downloaded all the software to modify the carrier.plist to no avail any help would be apreciated if Ive missed some information that may help please let me know and I will re-post thanks again
under settings it says
network chatr
carrier rogers 9.0
Modem Firmware is 06. 15.00
Version 4.2.1 (8C148)