HelderCR7, what image exactly did you put on your M8S+?
Is your remote working ok, or more precise... Can you wake up your box with original remote?
Will any of the LibreElec builds work for this box?
you could find 7.0.2 version for M8S+, which is working fine except 2 things reported:
1. stuttering with LiveTV (didn't try it myself, videos and streaming are playing great at my box)
2. unable to power on box with original remote - just power off (you have to pull the plug to wake up)