Originally Posted by
HornDawg1957
When I received the code over the phone from Cingular (now AT&T), I wrote it on a piece of paper and read it back to the Cingular rep to verify that I'd written the unlock code down correctly. So I'm positive that I was using the 8-digit string that Cingular gave me.
Ah. But did Cingular correctly transcribe the IMEI you gave them to generate the unlock code? As a general principle,
it is not a good idea to keep trying with the same code, because after a few (usually five, I think) attempts, the phone will lock in such a way that it has to be returned to the factory.
If at first you don't succeed - call the carrier and start from Square One. And have them read back the IMEI.