So after i tested now 2 different Bluetooth dongles, i am getting frustrated.
My Dongles, which were working fine on the RaspberryPI3, do now not work anymore as the XU4 is using 3.10.
The worst part on this, is that based on information i can find in the internet on the repositories of several developers, 3.10 broke Bluetooth more or less.
If someone knows how to fix this manually, i would appreciate this.
Otherwise i would be really happy if the Kernelsupport for the XU4 from Recalbox could be manage to be done to the most current supported Linux Kernel, which is supported by Hardkernel.
Kind regards
Tepoo