Hi, I'm trying to unlock a Nokia 3230 which was with O2. I downloaded a bit of software called Cyber GSM Code Calculator and entered my IMEI number (355399007025049) and the ASIC type which is 4 (I think?). Then I clicked on calculate and entered the given codes into my phone (minus a sim card) but nothing happened it just went back to say insert sim card. Am I missing any settings or is this just a crappy bit of software? Any help would be really appreciated. Thanks.
