Has anyone yet found a solution for using a Fn-Link 8223A-SR bluetooth device?
I have a S905W (v1.0 board) with 8223A-SR C12001 1748 chip on it. Trying a bunch of the firmwares available for download, I can get everything to work except bluetooth.
I've seen suggestions that a Q9337 driver might work, but I don't see that on any of the S905W image filenames. Is there a way to replace the driver afterwards or something?
Also, I notice that the buttons on the remote seem to work differently from firmware to firmware. Usually the back button does nothing (but right mouse click on a USB keyboard works?), sometimes the OK button does nothing... is there any way to customize this?
Edit: After unsuccessfully trying all the S905W firmwares, I noticed there was one S905X firmware that mentions QCA9337:
3. [v9] Aidan's ROM [S905X] [ATV 9] (RTL, QCA9377, LTM8830).img
I tried this one, and it did boot. (I was not sure if S905X is supposed to be compatible with S905W or what?) I did successfully pair my bluetooth headphones, but unfortunately it is silent.

Can't seem to do anything to get it to make sound, but at least it can pair?
It seems the audio just always is sent to HDMI no matter what. After pairing the headphones, I can press the volume up/down buttons and there's now a bluetooth icon on the volume indicator... but the audio itself only goes to the HDMI. These headphones work fine when paired with other devices, and this feature did work correctly on the firmware that original came with the device (but unfortunately that firmware has been lost).
Incidentally, this S905X firmware also makes Power OK and Back buttons work from my remote as expected. (Somehow the 3 universal S905W firmwares were each different from each other about which buttons worked? It's a strange inconsistency.)