Power on from remote needs to be supported by the U-Boot bootloader on the S905(x) box. Of my boxes, the wetek hub implements this properly: I can power down in Android as well as libreelec with the remote or by command line, and the box will power up again using the included remote control. The MXQ Pro will not power down in Android, but simply switch the HDMI signal off/on when I push the button on the remote. If I shutdown by command line or in Libreelec, the box will not power on again using the remote.As far as I know, the S905 bootloaders do not support power on from USB devices (keyboards, external remotes).
Since U-Boot is open source would there be a way to enable this for certain boxes and replace the current U-Boot with a recompiled one, possibly using the same patch as what is used by boxes that have this function working correctly?