Help user manual for M8 TV box

I recently bought a M8 OTT Android TV box. I have NEVER had one of these devices before
and I must admit that I am quite Tech. challenged. The user manual that came with it is
not helpful, it must have been written for people who are already familiar with these
devices.....not me.
Can anyone tell me where I could get a good user manual that I could follow to set my
M8 up ? thanks