Download Android 4.4.4 KitKat stock firmware for Kiwibox S3 TV Box
This firmware is for Kiwibox S3 TV Box with Rockchip RK3229 as CPU.
Download Android 4.4.4 KitKat stock firmware for Kiwibox S3 TV Box from here or here. Download a newer firmware from here.
Download Rockchip Driver Assistant v4.4 from here and download Rockchip Batch Tool v1.8 from here.
Firmware details
Archive: kiwis3-plus-newnand_myk
Model: Kiwibox S3 TV Box
Model number: KIWIBOX S3
Image file size: 494 MB
Platform: Rockchip RK3229 / RK322A
Image: kiwis3-plus-newnand_myk.img
Build number: rk322x-userdebug 4.4.4 KTU84Q eng.rwf.20161018.194532 test-keys
FW version: 5.0.00
Boot version: 2.31
SDK version: RK30_ANDROID4.4.4-SDK-v1.00.00
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.