I to al Friends.
This Codes Can Unlock Your Phone free.
You can try but at your Risck.I test in one phone and all is ok.
But this codes same times damage IMEI or Network. This Solution
is for all members don't have Rocker.

Unlock Samsung i607
Please try to hard reset

Samsung i607 Blackjack hard reset

Resetting your Phone

When the phone is powered off press the Up Navigation key and the Power key at the same time
Storage and setting are wiped clean, eject the microSD memory card before doing a hard reset.
or
You can reset your phone