Kaadas K8-T - System and Bluetooth Settings; Language Setting; Bluetooth Connectivity; System Query

Bluetooth Setting
Access into master mode, press [5] for
bluetooth setting.
Press [1] to connect bluetooth.
Press [2] to disconnect bluetooth.
Press [3] to disable bluetooth. After
that, press [1] to enable bluetooth.
System Query
Language Setting
Access into master mode, press [2] for
system setting.Then press [4] for
language setting.
Press [1] for Chinese Voice.
Press [2] for English Voice.
Access into master mode, press [3] for
system query.
Press [1] to get unique Serials Number.