Default Trouble switching services

I have a sensation 4G with Tmob running elegancia. I tried to switch to Metro PCS and they said everything is correct but I can't use my phone. when I try a call it calls Metro. So I cancelled but now Tmob does not recognise my sim (Iget this part). If I try smart talk with an ATT sim will I have the same issue? Does it have to do with the elegancia sw I installed for a sensation 4G Tmob.
First Smart phone. Sensation 4G from T-Mobile 6 months ago. Rooted 2 months ago and no where to go but forward.

This is kinda like playing with satalite receivers