Did it work? I also have a sunvell q box. s905x2, it was quite cheap, I bought it for somebody else, but unless my x96max and t95q, it does not boot the usb. Not reboot update, not with the tooth pick, not on the usb ports or with a sd card. It just does not start anything. As soon as I remove the usb stick with the new coreelec system it starts android normally.
I have no idea. I tried different usb sticks and cards. greetings