16:22 <hexdump0815> Ning: in case you are reading this offline from the logs - these are my notes about such experiments and i at least got one s912 tv box working fine with mainline u-boot

16:23 <hexdump0815> Ning: but in the end it always depends on how close such a box is to the reference design ... and be very careful with erasing the emmc on tv boxes as you can brick them easily

16:24 <hexdump0815> Ning: at least create a dd dump of the complete emmc beforehand if possible and try to find the pin to block emmc at boot if possible

16:25 <hexdump0815> Ning: i would recommend to avoid writing u-boot to emmc - wiping emmc and booting from sd card (which it does if there is no bootloader on emmc) is a bit less risky and is as far as i went with most devices i tried it with

16:26 <hexdump0815> Ning: on some s905w boxes i even installed mainline u-boot at emmc and it worked, but there is always a risk to brick the box worst case

16:27 <hexdump0815> Ning: forgot to post the link - here it is: https://github.com/hexdump0815/u-boot-misc/blob/master/readme.gxl