Display Morehavhav Guess I am misunderstanding something.
I have flashed my Minix X7 with the Kitkat-250 image as mentioned in your answer. I booted my Minix and I get the Kitkat with the Minix screen now (Green and grey).
Then I burned the LibreElec image posted by Vindio74. I plugged it into my uSD to SD adapter (NO-USB) and clicked it in the slot of the Minix.
The only thing that happens is that in the left top corner I get the message "SD card prepared". Nothing more happens. Thats it.
After a while I did a reboot using the Android menu and leaving the card in the MMC-slot. But no results.
What else should I do to start LibreElec?
There seems to be a difference between hot and cold reboot, maybe you can try to set the internal jumper to auto power on and repeat the procedure: 1)disconnect power. 2) insert SD card. 3) connect power.
Initial boot from SD card will take a while, be patient, you should see the red light in the optical audio port as an initial sign of correct boot.
Hope this helps.