Need help using iPhone on T-Mobile network on iOS 5.1.1

[SomeRandomGuy21]

I recently just bought an iPhone from a store...It wasn't unlocked or anything. It still had a sim card still in the tray. It's updated to the new iOS 5.1.1 with a tethered jailbreak by redsn0w with an unlock by Ultrasn0w installed from Cydia. I installed the SAM packages and it gives me a wildcardactivate code. It's able to read the SIM card because I Spoof it, but not able to let me get on the T-mobile network. I think I may be missing a step somewhere even though I followed everything step by step. So if anyone is a T-Mobile user using an iPhone or if you just know how to get it to connect to the network can you please walk me through the process.. Thanks

 

[Applejuiced]

Iphone 4 of 3GS?
Go to settings/general/about and let us know your modem firmare version.

 

[SomeRandomGuy21]

It's a 4..And the Modem Firmware is 04.12.01

 

[Applejuiced]

There's nothing that can unlock it at the moment.
Besides calling AT&T or the carrier it's locked to and ask them to officially unlock it.
No other options besides that.