If I copy just the dtb.img from my SD card to the SD I intend tu put in my friend’s box, will it work ? Or should I install CE 9.2.8 classic and then wait for the updates ?
No, this Soc will stay for the moment at CE 9.2.8. Download generic img for 9.2.8 and install it on SD card.
Don’t know what version of CE you have, sure isn’t CE 19. If it is the same box with same specs you should be able to copy the dtb from your box to another.
No, no need to delete, maybe someone has same issues with 912 Soc and bumps into this at a forum search. Solved would be better! That would be my choice, you decide anyway, it’s your post.