I bought an iphone 3g off a car boot purely on spec.
The seller said it needed restoring on itunes he had lost it,had it replaced and never knew what to do with it.I thought I could probably fix this so decided to buy it..I did the restore and the phone is good. When I put my monthly paid sim in it shows no network and sometimes tells me my network is restricted.
I know nothing about jailbreaking etc and have tried several things I have googled but to no avail.
These include turning 3g on/off date/time changing, push notification off, settings via o2, all to no avail.
As it stands this is at the moment an ipod touch as it works in every way but wont make a call or text.
Please if anyone can help me I would be so thankful.