Hi guys again, sorry for creating new thread, but I have some problem again. So I restored my iphone 3Gs to 4.3.2 using snowbreeze costum ipsw and the problem is Iphone doesnt recognize sim card. I have no service. I tried to install ultrasn0w but then the phone gets laggy and it doesnt help just the iphone starts to work very very slowly. So if anyone knows what the problem is I would appreciate to hear some answers.

Thank you.

Okay, first activation is different from unlocking. Without activation you don't have access to apps just slide to emergency. Since you said you used Cydia, I will assume you activated and want to unlock.
I am not sure ultrasn0w works with 4.3.2, but what baseband do you have? Your best bet is downgrade to 4.3.1 (if you have SHSH).

Okey, I restored iphone to 4.3.1, installed ultrasn0w and now its unlocked. But iphone gets very very laggy and I hate when it laggs so much. Hmm, why is that ? When there is now ultrasn0w iphone doesnt lag.

P.S. I have 06.15.00 baseband

P.P.S. Nah, its started to lag without ultrasn0w also. ;/

Did you "restore from backup"? My suggestion is to restore an then this time set up as a new phone, it shouldn't lag.
You can then manually transfer you contacts, photo, etc.