If you have problems after jailbreak and software unlock, try the updated ultrasn0w 0.91-1 that has been released few hours ago. The iPhone Dev Team said it would help to fix most problems including “unusual battery depletion”. They also advise users to choose “Setup as a new iPhone” after complete restore. Note this will lose all the existing SMS and call logs. To grab the latest software unlock tool, use redsn0w to jailbreak the iPhone at first. Then, go into Cydia and add “http://repo666.ultrasn0w.com”. You will be able to search ultrasn0w 0.91-1 after all.
[via iPhone Dev Team]
if I use let Purplera1n to unlock, will the ultrasn0w fix work on iphone 3gs? or will it damaged my iphone?
I did not use Redsn0w because its too difficult to crack the iphone.
TOM,
YES if you use the latest version of ultrasnow. They are separated. No need to use redsn0w.