We have got hold of firmware of MXQ-4K android TV box that is powered by Rockchip RK3299 processor. This chip is manufactured using 28 nm technology and is based on ARM Cortex A7 architecture that is backed y Mali 400mp2 GPU.
Download the MXQ-4k firmware update from here and uncompress it after download is complete. Then, copy the decompressed file in the root of a microSD card and connect the android TV-Box while it is off.
Hold the recovery button and connect it to the TV mains. Android icon will show up indicating that flashing process has begun. Now, you can release the recovery button and wait for the upgrade process to complete.
Here are the features of MXQ-4K android TV
* GPU: ARM Mali-400
* OS: Android 4.4
* ROM/RAM: 1GB DDR3+8GB Nand Flash (up to 32GB)
* WiFi: 2.4GHZ
* Wired Network: 10/100Mbps Ethernet
* 3D: Hardware 3D graphics acceleration
* Support language: English, Germany, Spanish, Italian, French etc.
MXQ-4K android TV port selection includes HDMI 1.4b, Micro SD Card(TF), 4x USB2.0, SPDIF, RJ45 and Power Input ports.