have T-mobile? I put the sim card everything was working. Then I updated in the cell phone software, when I finish the update it asked me for the SUBSIDY CODE. then I took the cell phone to store of cell phone and they took the IMEI and the other day put in a subsidy code but it did not work. they say that the only way to unlock it is to take to their dealer. SO I was wondering if this is true or if I try those companies online that provide subsidy codes will I be able to unlock it ? any thoughts. Please help.