So here is my story, plz help me guys.
So i software unlocked my uncle's iphone 3GS and everything was working fine, he used t mobile. Than he had some issues and gave me his iphone again to restore it. I told him if I restore it, you will lose the unlock. But he said he is willing to use straight talk as that can be used on a locked iphone(GSM).
Now I have restored it and there is this activation screen, I cant go beyond this screen. I just need to go beyong this screen, that's it. I used old unactivated tmobile and att sim but everytime activation fails and says no sim car installed/call some number and blah blah . Thanks in advance