Ok, so I have recently fully updated my Fydetab Duo to FydeOS v19.0-SP1 and all (hardware) Firmware updates. It seems to have considerably improved the bluetooth stability and performance in most cases. However I can still find stuttering issues and volume control issues on different devices. Where previously I could find significant stuttering issues with all devices and even full disconnections with some, currently I find:
Redmi Buds 5 Pro bluetooth earbuds - no more issues;
AP09 TWS bluetooth earbuds (cheap generic from ALDI) - occasional/random playback stuttering;- Maginon BTH-4 bluetooth headphones (cheap from ALDI) - no more issues;
- Prozis Split bluetooth speakers - Mute works but volume control slider doesn’t work (always set 100%);
Please bear in mind that all of the above work perfectly fine with all my other mobile phones, computer laptops/tablets/desktops - with the exception of the FydeTab Duo. So, still some work to be done here! Also with the FydeOS v19.0-SP1 there seem to have been introduced some video decoding color artifacts which I haven’t noticed before - this is very noticeable on the Rammstein - Deutschland (Official Video) youtube video (in example) - but not on all videos. But I’ll open a dedicated thread for it (here).