I’m sorry for the late reply. This is what I found on dmesg regarding Bluetooth. Bluetooth works fine on Coreelec, but Batocera won’t boot if I use dtb from Coreelec
[ 16.178665] Bluetooth: HCI device and connection manager initialized
[ 16.178691] Bluetooth: HCI socket layer initialized
[ 16.178701] Bluetooth: L2CAP socket layer initialized
[ 16.178724] Bluetooth: SCO socket layer initialized
[ 16.534109] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 16.534124] Bluetooth: BNEP filters: protocol multicast
[ 16.534148] Bluetooth: BNEP socket layer initialized