Having trouble unlocking Nokia 6670(Fido Canada), hope someone can help. I have tried several apps to get codes to no avail. Nothing happens when i press codes. I haven't got the permanent lock message either. IEME 356204/00/010417/2 CODE 0519816//060521AD model: 6670b type: RH-68 When I try my rogers sim card, it says SIM card not valid.