Can I update my jailbroken first gen iphone to iphone system 3?

I have a jailbroken first generation iphone. I used pwnage to jailbreak it and it has a deactivated sim card in it. It's running system 1-point-something. I want to know if I can update it to system 3 without totally bricking it. Any help would be appreciated!

gmxx7 years ago
the 1st gen iphone should support the 3.0 software. as i remember, its pwned for life device, meaning that it should work