Download KitKat 4.4.2 Stock Firmware for Cloudnetgo CR12 / CR13 / CR16 TV Boxes from here.
Archive name: T032_5.1_public_6330_160322
Archive file size: 497 MB
Platform: Rockchip RK3288
FW version: 5.0.00
Boot version: 2.19
Model number: rk3288_box / RK32
Build number: rk3288_box-userdebug 5.1.1 LMY48Y eng.hotack.20160321.145437 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.