My problem is auto change mobile network with 2G/3G VN Mobifone. It didn't work. if i selected GMS (2G), it could recognize network, but when I selected auto network or 3G network, It didn't work.
MY HTC ONE M7 is International Asian HTC.
Sorry about knowledge English (bad) and thanks a lot for your helping.
Waiting for early response from you.
again, thanks a lot.