Hi Sir,
So sorry to hear the struggle you suffered. Please try follow steps:
1. Flash UEFI to 64 bit for linux;
2. Get a USB thumb and follow the guide below to create OpenELEC bootable drive;
www.jaguarboard.org:8090/display/ED/Turn...HD+Multimedia+Player
3. Power on the board and press F11 to boot from the USB thumb.
4. Let me know the result, if possible, record the all steps by video and share to us.