The backlighting used to work on both of my BR2 remotes--no more. I have the manual, & it seems to say mainly how to disable the backlight--using code 792--altho even that only disables the motion detector (?). Code 797 "toggles" the backlight on & off?--I've tried that also. And yes, I've been using the remotes in a darkened room.
All of the other functions seem to work fine, so I assume the batteries are OK. This is a real drag b/c one of the remotes I'm using in a bedroom at night. TIA for any advice.