Hello.

A friend gave me his iPhone 3G so I would upgrade to atleast 4.1 (that seems to be the most stable one)

(I have all the SHSH blobs from 4.0 up to 4.2.1 if they're somehow needed.)

So I restored with 4.1 itunes+tinyumbrella. Then hactivated w/ greenpois0n.

It currently has a baseband version - 05.14.02

What should I do to use my own SIM card? Does the baseband need upgrade? How should I do it?
Halp.!