Helps on jailbroken iphone 3g

[weekiat]

Guys,
i just need to know that,
if i could directly upgrade to 2.1 software,
where by i'm using jailbroken 2.0.1 iphone 3g.
What do i need to do.
Could someone told me,
i know i'm noob,
I'll appreciate very much

 

[Jeremy]

You can update to 2.1 via iTunes sure, but you will then have to jailbreak again after it is done updating.