How to enter my Unlock Code on Cingular i607 i-607 BlackJack  Cellular phone?

Curtsy of xyzunlock  (unlocking service for wholesalers & retailers)

Insert disallowed simcard
(a simcard that the phone does not usaully accept)and enter unlock codes when promptedNOTE: If you are unable to connect to service provider or unable to make out going calls or recieve messages, this has nothing to do with your phone being locked or not, you need to force the BlackJack to change to GSM mode, this can be done as follows:

Power on your Phone

1. Enter *#1546792*#
2. Select Option 3 Network & Call Settings
3. Select option 5 Network Mode
4. Select GSM

This should resolve your problem.

(you do need to get the unlock code from either the carrier or you can get it from any unlock cellular phone service)

If you are looking for an unlock service you can use