Hi, glad to share the MINIX NEO Z64W firmware.
The firmware has two RAR files, please download them in a folder, then you can decompress the files.
There is a guide document in the RAR file, please read it before flash.
Here are the packages of MINIX NEO Z64W Windows TV BOX firmware
Part 1: MINIX NEO Z64W Windows TV BOX Intel Z3735F 20150421.part1
Part 2: MINIX NEO Z64W Windows TV BOX Intel Z3735F 20150421.part2
This firmware can also works with MINIX NEO Z64A, but first you need to flash BIOS according to this guide Official BIOS conversion files