Android 4.4.4 KitKat FW for NEO Z64-A is available to download from below:
Download Link 1 [MINIX Forum Server]:
http://theminixforum.com:9009/firmwares/Z64-A-Android_4.4.4-20150413.zip
Download Link 1 [MINIX Forum Server]:
http://theminixforum.com:9009/firmwares/Z64-A-Android_4.4.4-20150413.zip