Also tried with another S905x - Sunvell T95m - 2G/8G that also works with older LE. Same behaviour on that box - infinite boot loop.
NOTE:Very first time booting after the install, there is text down left hand side of screen and the final message is "Reached target Kodi Media Center" or something similar (can't recall exact wording). It suggests that everything is good to go, but we just get boot loops.
Maybe the dtb is the cause??