I have purchased recently a A95X F4 box, with S905X4 inside.
But I fail installing CoreElec…
I tried many possibilities : rebooting with maintaining reset button or a specific button on remote controller (menu or power), using “Update” or “Terminal Emulator” app…
But everytime, A95X F4 is booting in a special boot mode, as you can see on the “Picture 1” below :
Then if I choose “Apply update from SD card” like on the “Picture 2” below :
Android recovery is the wrong place to install CE.
Have you created a bootable SDcard following Wiki?
If yes, then your SDcard is either not bootable (e.g. wrong dtb), or you have a locked Bootloader, preventing to boot from SDcard…
Checkout also the alternative ways decribed in wiki for booting CE.