unlock cell phone

I FINALLY unlocked my AT&T phone so I can use it for Cingular. Just wanted to share my painful experience and the lovely tutorial that ended my misery 😛

Source: http://www.mobiledia.com/forum/topic7430.html

For any Samsung Phone Model S100 and up.MOST SAMSUNG phone will work,
Sample, Samsung Sgh e100, e105, e700,e708, e715, p100, p400, p407, p408, s200, s208, s300, s307, s308, v200, v205, v206, x105, x426, x427..& more

Warning: If this does work. DONT TRY MORE than 4 times. IT WILL TOTALLY LOCK YOUR PHONE.

1. Turn off your phone, put in a SIM of a provider that it is NOT LOCKED (difference company’s SIM card) to, and turn it back on.
2. At the wrong card message, type *#9998*3323#. A message will pop up telling you to press exit, so hit the right soft key. Choose number 7 (or 8 or 9 will work too, I think). Your phone will reboot and your SIM will work.
3. Type *0141# and then hit call. This will give you a message saying your phone is personalized.
4. Power down your phone and insert a SIM card other(another company) than the one that is in it. Then power back up your phone.
5. At the SIM pass code prompt type 00000000, that is 8 zeroes. So that will totally UNLOCK your phone.”

To enter wap settings: Enter *#vswap# or numerically, *#87927#
To enter mms settings: Enter *#vsmms# or numerically, *#87667#