how can I unlock my iphone 4 5.0.1 to work with t-mobile after jailbreak ?

[RafikHegab]

I already have Cydia on my iphone 4 but can't unlock it

 

[saravedi]

I will help you to unlock the I-Phone 4 easily,you can use the I-Tunes to unlock it,you can get the remote unlock service from here Mobile-unlocker.com and unlock it from Network lock.Then use with T-mobile.