The BeoRemote One BT software will be updated automatically via the Bluetooth connection from the TV. This happens when the TV is switched to standby.
You will be able to see the update progress in the display of the BeoRemote One BT.
After the software has been installed, the BeoRemote One BT will reboot for 30 seconds after which it will show the Bang & Olufsen logo.
Any additional remotes in the setup need to be connected with the TV. Switch the TV on and off with the second remote - and the automatic software update of the second remote will start.
The BeoRemote One BT display lists (e.g. source list) will automatically be updated when you switch on the TV.