The btlru must be configured for BT (BR/EDR - Classic) or LE (BLE - Low Energy) mode. Configuration is done in the cfg menu.

btlru :>cfg
BT Configuration Menu:
	Mode: BT
cfg :>?
Configuration menu
options:
	-m [BT | LE]    -> BT mode
	x               -> Return to previous menu

BT Configuration Menu:
	Mode: BT

cfg :>-m LE
BT Configuration Menu:
	Mode: BLE
cfg :>x
btlru :>

To set the test mode, use the -m command. If the setting is successful the btlru will reflect the new setting in its status and help commands. Use x to return to the previous menu.