Low audio after Bluetooth

I have a95x max plus =this one here https://www.priceboon.com/product/a95x-max-plus/
Now I have had the box for around 2 years with coreelec now I have had problems with coreelec in the past mostly operator generated.

So the other day I turned on the Bluetooth for the first time, but it wouldn’t unpair so I turned it off in service and ever since I have very low volume.

I know it is not the tv, and since then I have reinstalled coreelec to SD card so I have a fresh install and still low volume.

I can’t see that just going from HDMI audio to Bluetooth audio could break anything (maybe I’m wrong)
Is there anyway that it could have set hardware volume on the bootloader