[3GS 3.1.2 05.12.01] No Carrier
I'm trying to fix my friends iphone.
wifi is working
He updated it from 3.1.2 to 3.1.3.
I used umbrella and tss + 3.1.2 shsh to get it back to version 3.1.2, but firmware is stuck at 05.12.01.
I can jailbreak it with redsn0w 0.9.2 and blackra1n, but i can not get the carrier unlock to work...
Have tryed blacksn0w and purplesn0w, but do not get the carrier menu.
With ultrasn0w i get the carrier menu, but a carrier list error.
Any ideas to what to try now ?