Nagrace NT-V6 TV Box is powered by Rockchip RK3288 processor, and in my review I found the hardware to be pretty good, although some progress had to be done on the firmware. The company is still focus on perfecting Android firmware for NT-V6 and Firefly-RK3288 development board, but in meantime, they’ve released a dual boot image capable of running either Android 4.4 or Ubuntu (14.04?).
To give it a try download HPH-RK3288-Android-Ubuntu_20140924.rar. I haven’t been able to try it myself, because Google Drive download is extremely slow today. Once the download is complete, you’ll probably need to flash the firmware using Rockchip AndroidTools (windows) or upgrade_tool command line utility (Linux).
The dual boot firmware is based on Android firmware 1.3.9 released on September 30, plus an Ubuntu root file system. It’s not overly convenient to use Ubuntu, because you need to enter recovery mode by inserting a sharp oject (e.g. a toothpick) into the recovery pinhole on the side of the device, and keep pressing for a few seconds as you power it up, or reboot from Android. Switching from Ubuntu to Android is much easier, as you simply need to click on a button called “boot android” located on the home screen.
It’s highly unlikely this image support 2D/3D graphics acceleration and/or hardware video decoding in Linux, but since the eMMC flash has very good performance, overall user experience should be pretty decent in Ubuntu, and most videos (up to 720p or 1080p depending on video codec/bitrate) can probably be played relatively smoothly using software decoding. The company also warns users that the Linux image is likely to have many bugs, and fixing them will be done after they’ve handled Android bugs.
If you have some other RK3288 TV boxes (Orion R28, Beelink R89…), you can also try some instructions provided in Linuxium in Mini PC Google+ community.