Official Android 4.4 Firmware for RK3188T HDMI TV Sticks Released
At the very end of last year, a beta Android 4.4.2 firmware for Rockchip RK3188 mini PCs was released, and yesterday, GeekBuying announced an official Android 4.4.2 firmware for Rockchip RK3188T (notice the T) mini PCs with AP6210 Wi-Fi modules,with bug fixes from the beta version. This should work with device such as MK908II and MK809III.
There are at least two caveats however. First, I understand it will only work on RK3188T, not RK3188, and hopefully an official RK3188 mini PC firmware will be released soon, but since manufacturers may have changed from RK3188 to RK3188T for the same model during manufacturing, you have to make sure which version you are using. You can do so by installing CheckRK3188 app on your device, and check if you have the slower RK3188T SoC, or the older, but faster RK3188.
The second issue is that Google Apps (Play store, gmail) are not pre-installed. You might be able to do this yourself by downloading gapps-kk-20140105-signed.zip and installing it in a way similar to what I explained in an older post about Wandboard.
If you’d still like to go ahead, you can download Geekbuying_TV_BOX_RK3188T_Android_4.4_official_AP6210.rar (password: “geekbuying.com”), and flash it using the usual method. If you’d rather not tinker too much, and get something that works with GApps, you may better wait for a custom ROM from Freaktab based on this image.