hey guys i have an iphone 4 i have it jailbroken and i believe i have it unlocked as well i used ultrasn0w through cydia and i put my t-mobile chip into the phone and i said searching then showed empty bars and wouldnt work i tried turning off the 3g and putting it in airplane mode but still it hasnt worked is there a way to check if it is unlocked or not and when i cut down my sim card it wasnt exactly perfect in the sim holder could that possibly be it i cut it a little small ??? please help thanks