can not unlock 3.1.2 and baseband 05.11.07
 

can not unlock 3.1.2 and baseband 05.11.07 by blacksn0w unlock done but when rebot the mobile it open in recovery mode

3gs??? its normal after using blackrain... just advice costomer do not full off the unit after unlock

i have a unique problem about this..
i have an SU iphone, which was unlocked with firmware 2.2.1, and the signal is good. i upgrade it to 3.1.2, then unlock it with blacksn0w. but after the iphone restart, the signal is gone. there is only "no service" notification.
i try to restore it again with the same firmware, but no luck.
the modem firmware still in 5.11.
it used to be no problem with the modem firmware, right? i'm confused why the signal is gone. it was good before.