How can I update my tablet ZTE Trek 2 HD K88 ?
I know if i use a at&t sim card and connect to at&t network , then i can get the lastest version update via ota.
but what if i dont use a at&t?
So i asked update files to ZTE USA SUPPORT TEAM because i dont use a at&t plans and then they said that i should contact to AT&T support team because k88 designed for at&t and only AT&T has a update file for my tablet.
Please answer how i can update my tablet without at&t network and sim card.