Drivers for Octagon SF 4008, not tested with SF 8008, I still have not this receiver, that work fine with channels that have problems with last versions of OpenATV 6.2, is a file named
"linuxtv.ko" in:
lib\modules\4.1.37\extra
Can be downloaded from here:
https://octagon-forum.eu/test-team/sf4008/sf4008-drivers-4.1.37-6.3.0-20170515.zip
After be replaced, the receiver have to be rebooted.
In case of replace the file from another image and the receiver remains in "booting...", the file can be replaced from the PC via LAN,, then disconnect the receiver, and reconnect it again, the receiver switches on, and works again. With the file of drivers that can be downladed from the like posted here, I have not any problem with my Octagon SF 4008. Not tested with any other receiver.