I have an Alfawise Z1 (2/16) and there was a problem under CE, the BT remote OK button cant working only when i switch to mouse mode. With this little mod i able to use as expected.
First, create /etc/udev/hwdb.d/10-btok.hwdb file and fill with:
evdev:input:b0005v2B54p1603e*
KEYBOARD_KEY_c0041=enter
Save, reinitialize hwdb and reboot system:
systemd-hwdb update
reboot
The remote controller use the following codes:
Mute c00e2
Menu 70065
Ok c0041
Up c0042
Down c0043
Left c0044
Right c0045
Home c0223
Back c0224
Mic c0221
Vol+ c00e9
Vol- c00ea
Prev c00b4
Next c00b3
Mouse mode
Ok 90001