I have a RK3188 device from http://www.joy-it.net. It´s called JOY-IT Smart PC Box 3.0. It is an RK3188 device with a RTL8723AS LAN/Bluetooth chip. It has 2 GB of RAM and 16 GB of NAND. R-K42 custom ROM from Wasser bricked the device, but shorting PIN 8&9 of the Toshiba NAND revitalized the device.
The real vendor is shown as EvoTvo, and the model´s name there is called "eTV Diamond".
Pictures of the PCB are shown here:
So, which device is it and which custom ROMs can I use?
TIA,
Joachim