I lost network after ultrasnow bb 6.15

[m2u]

Hi juys i have 3GS ios4.1 and when I update the bb to 6.15 than when I installed ultrasnow the phone unlocked but after time there was no service and I couldn't connect than i reinstall the ultrasnow and it didn't work so tell me what to do coz I can't use my network btw I am not AT&T user

[libindaniel2000]

If you are on t-Mobile, 3G won't work. Make sure that it is off in Settings