3GS Jailbreak - Won't connect to carrier "Searching.."

[OR1G1N]

Won't connect to my carrier Rogers, only says "Searching..." or "No Service" had no problem before jailbreaking. This is the process I used:

• Used redsn0w and 4.2.1 ipsw
• installed ultrasn0w via cydia

[Cid6.7]

Yep it fried your sim card same thing happened to mine go into a Rogers store and ***** they'll give u a new one hopefully free

[Goof]

Maybe not, did you remember to install iPad Baseband? If you didn't install iPad Baseband then Ultrasn0w isn't doing anything.

[i.Annie]

Just be aware the iPad baseband breaks GPS. otherwise, if your baseband is 5.15.xx or 5.14.xx you'll need to use the iPad baseband to unlock with ultrasn0w like iGoof said.

Or wait for a new unlock if you don't want to break GPS which currently there is no fix for.