If you use the GEVEY SIM to unlock the iPhone, you might have the problem that appears when you call the phone number or receive message but do not see the contact name.
The solution is this, just add country code(like AU=+61) to each number in your contact list and solve this problem.
But this is cumbersome and for unjailbreak users. So if you performed the jailbreak on your iphone, the following are the solution:
1. Go to Settings/General/International/Region Format/ and select your region
2. Go to this folder on your iphone at root/private/var/mobile/Library/Preferences/
3. Edit the file "com.apple.AppSupport.plist". For example, (Look at photo) I'm in Australia, so change the content to "au" between "<string>" and "</string> in both two lines.
4. Finish the changing, then launch respringboard or restart.
Finally, the problem will be fixed.
http://www.facebook.com/photo.php?f...6683556268.312716.175726226267&type=1&theater