Here is the stock firmware for the Minix NEO X6 TV BOX.
Minix neo x6 is powered by Amlogic s805 quad core chip, support h.265 hardware decoding. Compare with the Minix NEO X8-H, it lack the support of 4K. but it’s a good choice for the low-end media player.
You can download the firmware here:
Here is the instruction for how to flash the stock firmware:
Here is the firmware version,and kernel information:
The firmware is not rooted, but it has the Minix xbmc built-in. and here is other built in apps: