ok i have about 3 different iphone 3g in my family and two of them were unlocked easily using blacksn0w however one of the iphones we bought from Europe...when I tried unlocking that phone..its giving me no service after blacksn0w...this phone was working fine when I had unlocked it using yellowsn0w about a year ago when it was on 2.1 OS...even with yellowsn0w it would give me no service issues but then I would go into the mobile terminal and type yellowsn0w -r and then it would pick up the signal..so the hardware of the phone is perfectly fine because it was unlocked before using yellowsn0w but this time I attempted to unlock it through blacksn0w..it would give me no service...as soon as I turn off and then turn on my phone...the phone detects I have a voicemail but then right away it loses the signal and says that your cellular data has been lost....here is what I have done so far
1) fresh restore to 3.1.2 from 2.1 and then blackra1n and then blacksn0w but no service
2) resetted network setting but still no service
3)turned off and on 3G and the phone would say searching and still no service
4) poped the sim out and then back in and then put it on airplane mode off and on but still no service
5) did a fresh restore through itunes again and created a customer firmware through pwnage and then installed blacksn0w through CYDIA but still NO SERVICE...
it would do the same thing..it would pick up my voicemail but then i would get this error message that your cellular data has been lost...PLEASE REMEMBER THIS PHONE WAS working fine with t-mobile before I attempted to upgrade it and used blacksn0w...now this is very strange how come I was able to unlock the other two iphone 3g right away through blacksn0w and just not this one....I have done a lotta research and even googled for a solution but this hasn't been solved yet cuz I know a lot of people are having the same exact problem and they were unable to figure out whats wrong with the iphone...I have done every possible thing in this world to unlock this certain 3g phone through blacksn0w but its not picking up the signal..it would just say SEARCHING for 10 seconds and then it says NO SERVICE...please help me.....pleaseeeeeeeeeeeeeeeeee