adminZXHN or adminZTE or Zte521Unlocking the ZTE ZXV10 B866V2 Android TV box involves either bypassing operator restrictions via voice command exploits and button mapping, or flashing custom firmware using tools like Amlogic USB Burning Tool. These methods allow for removal of operator-imposed software, but carry risks of device "bricking" or warranty voiding. Detailed community discussions and firmware resources can be found on XDA Developers.
Using the remote or a USB mouse (if touch works): Zte Zxv10 B866v2 Unlock -FREE-