Keep the S905X3 TV box running Armbian stably

currently existing problems:

1. The reboot command cannot be used
2. Sometimes it can’t start normally。The screen is always black。

Solution:

1. You need an SD card.

Step by step:

1. Write armbian image to built-in emmc disk normally.
2. Write armbian boot partition to sd card
3. Copy the extlinux.conf of the boot partition of emmc to sd
4. Rename u-boot-s905x-s912 to u-boot.sd
5. reboot

Tested Equipment:

HK1Box S905X3 4+ 128G
N5Plus S905X3 4+64G + SATA