The box boots up, and immediately the message "Bluetooth keeps stopping" is displayed with the choice of "App information" or "Close app". With more clicks on "Close App" I close the "window". In the settings, Wifi and BT are grayed out. (I have Wifi set to off by default.
After I enabled WiFi and also enabled BT, all paired devices are displayed under "Remote & Accessories".
(see screenshot)
I am happy. Many, many thanks. And sorry for my bad english.