Download latest Android KitKat 4.4.2 stock firmware for ZERO Devices Z8C Alice TV Box from here or here. Download previous firmware from here.
Here you’ll find a nice photo gallery with this firmware.
Archive: Beelink_S82 Plus_202k4_31032015
Model: ZERO Devices Z8C Alice TV Box
Image file size: 412 MB
Platform: AllWinner A80
Update file name: Z8C_ALICE_1.0.1.img
FW version: 4.4.2-a80-v2.0rc3
Style: Z8C ALICE
Company: ZERO Devices
Pixels: 720 x 576
Build number: Z8C-eng 4.4.2 KOT49H 20141224 test-keys
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.