If your IPhone should not reboot and you do not want to restore---If you restore now your phone will update to 3.1 and if your on Iphone3GS you may not be able to ever jailbrake your phone again. A new tool will become available from the Dev-Team that will allow the 3gs phone to be updated and broken. Do not update untill this new tool is available or you may not be able to jailbreake your phone in the future.
Use this tool Anti-Bricker
Get Rocking
It will fix your phone and get you up and running.
Use this tool Anti-Bricker
Get Rocking
It will fix your phone and get you up and running.