unlocked AT&T Lumia 1520 cannot get T-mobile signal


    Hi everyone,

    I bought the phone on eBay, unlocked (##7820# checked). It worked with T-mobile just fine at first then suddenly stop receiving T-mobile signal after several updates (it isn't because of the update though I tried to downgrade it to Denim and it doesn't work still). I called T-mobile and they couldn't help. I am not AT&T customer so I have no right to call them. Does anyone have any idea?

    Thanks guys


      All replies