Welcome to Apple iPhone news and Chat discussion forums. iPhone Discussions is dedicated to iPhone,Talk about iPhone modifications,software,reviews,Support, iPhone news , iphone mobile,iPhone OS and more...
I recently restored my iphone 4 to factory settings to fix a seperate issue, but since my phone has been saying 'only compatible sim cards fron a supported carrier may be used to activate iPhone' My sim card is an english o2 sim which has always worked previously. I am unable to set upthe phone or restore using itunes so my phone is completely not functioning. any ideas on what i could try next? My last resort is the genius bar
It sounds like your iPhone was hacked to unlock it and updating
has locked it back to the original carrier .It is now relocked to that carrier
http://support.apple.com/kb/HT3743
If this is the problem unlkely that Genius Bar will help
It sounds like your iPhone was hacked to unlock it and updating
has locked it back to the original carrier .It is now relocked to that carrier
http://support.apple.com/kb/HT3743
If this is the problem unlkely that Genius Bar will help

Reply something about S not recognised-incorrect carrier. HELP iPhone 4 or Post a New Thread