Try these codes #pw+493327610125537+1# #pw+195194113323406+2# #pw+439107752743115+3# #pw+289495301766504+4# #pw+123494041166704+5# #pw+743900063131215+6# #pw+914532434237140+7# But use sim card from another network provider and when it gives phone restricted then press undo and then type the code. I have unlocked my 3220b yesterday in this way and it worked at the first attempt. USE ANOTHER SIM(from different network provided).
try these #pw+493327610125537+1# #pw+195194113323406+2# #pw+439107752743115+3# #pw+289495301766504+4# #pw+123494041166704+5# #pw+743900063131215+6# #pw+914532434237140+7#