Download Android KitKat 4.4.2 stock firmware for Zero Devices Z8C Alice TV Box from here or here.
Download from here stock firmware for Jesurun CS-Q8 TV Box. Download stock firmware for Rikomagic MK80 TV Box from here.
Archive name: Z8C_ALICE_1.0.1
Firmware image: Z8C_ALICE_1.0.1.img
FW version: Android KitKat 4.4.2 stock
Archive file size: 413 MB
Model: Zero Devices Z8C Alice TV Box / Tronsmart Draco AW80 / Rikomagic MK80 / Jesurun Maxone / Jesurun CS-Q8
Platform: Allwinner A80
Build number: Z8C-eng 4.4.2 KOT49H 20141224 test-keys
FW version: 4.4.2-a80-v2.0rc3
Style: Z8C ALICE
Pixels: 720 x 576
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.