I tried the file for libreelec 6.6.5 from @piotrasd but for me doesn't work. DVB plugin says it detected driver and adapter. TVheadend detects tuner but doesn't work. So I roll back to 6.5.3 and desperately waiting for another... 😞
I think the install process is:
1.) Update to 6.6.5 and reboot
2.) Download correct file from @piotrasd unzip/overwrite files on root flash drive and reboot again.