Help with iphone 4

[SLASH2NITE2]

Hi,
i jailbroke iphone 4 with limera1n.
Unlocked with ultrasn0w.
Put tmobile sim card in and now phone went into emergency screen.
And shows t-mobile with 5 bars.
How can i fix.
Thanks

 

[Gregoris]

?what firmware and baseband are you on?