Have to agree w/ cy on this one. . .cell phones are millions of midget comps running on a wireless network. The fact that you gave out the IMEI makes me weary, as well. IMO looks like you may be asking to hack. . .which is actually kewl by me, I just don't like to be acessory to illegal activities. Everyone has given you the information you need. . .contact your carrier. If it is the PUK code, it'll only take a few minutes, after waiting on hold for a long time. . .to correct. If not, you may to buy a new SIM, 30.00(USD). Good luck, nothing sucks more than paying for a cell that doesn't work.