So, I decided to examine the contents of some kind of box in the closet. As a result, four Android devices were found. CS918, MK809 III, Mini XPlus II and MK808B Plus.
All these are small TV boxes for Android. The RK3188 processor is installed in the first and second ones. The third one has an AllWinner A10 CPU installed.
----------|
There is nothing interesting in the first three devices. But the MK808B is of some interest. Because there is an Amlogic S805 + Mali-450 GPU processor.
This means that you can install, for example, an old (mmmm... legacy) version of Lakka (distro for emulation) on this device.
But there is a more interesting option
The Hungarian enthusiast continues to support the LibreELEC version for similar devices with the old Amlogic CPU.
Yes, the Kodi version is "only" 18.9 (Princess Leia) there. But I think everyone will agree that this is much better than Android 4.4 KitKat, which the device was sold with 
In addition, Kodi Leia supports running libretro (RetroArch) cores 
Thanks to this, you can watch movies on the local network and Internet and play retro games! The system shows in the settings the workload of the four processor cores, the amount of RAM and even the temperature. Full HD, Samba, Bluetooth - everything works.
I was unable to compile the system in either Puppy or Arch. Cross-compilation for ARM processors. I had to run Ubuntu 18.04 from a USB flash drive and compile there 
For such cases, 64 gigabytes of RAM are very useful - the compilation was all in RAM.
But if you do not want to make your own changes, then you can take a ready-made image for recording to an SD card on Github. Mmmm... Or here, it's even more convenient there.
- MK808B_Plus.jpeg (19.28 KiB) Viewed 35 times