Why can't Huawei pay for mobile phones in Thailand?

Huawei mobile phones can't be paid in Thailand because the network in remote areas is not covered. As countries continue to build networks, there are remote areas that cannot be covered by networks. Confirm whether the mobile phone supports local network. In theory, mobile phones support some or all frequency bands, and it is not excluded that the local operator network has restrictions on mobile phones. Whether the mobile phone can be used abroad depends on the local network frequency band supported by the mobile phone and the local network coverage. It is recommended to consult foreign operators before going abroad.