Hey guys, I have an apple iphone 3GS that I bought from the US, and got back to India. It was working fine until last month, whence it suddenly locked itself. It turns out that it had upgraded the baseband to 6.15. Now, I got redsn0w, and downgraded the iphone baseband after jailbreaking it . (it was already jailbroken, I did it again using redsnow) The iphone baseband was gotten to 5.13.04. The OS that is running is 4.1 I have tried all manner of ultrasn0w from Cydia, it hasnt unlocked it at all!!! Tried ultrasn0w, restarted the phone ----* many times. Did not work. The device is locked! No unlocking. What to do ? How do I unlock my phone to run it on a random SIM card??? Thanks a lot folks!