@Sergey LepeshkinThank you, is there anyway to get it out and reveal the cpu (may fake, but worth trying) Also, i don't even know why they put a fake update screen on a fake tv box but i found a guy with same problem on me : I don't know what to do, my box does have the usb debugging and i will try to debug it

Etcher used to be / is broken. https://docs.armbian.com/User-Guide_Getting-Started/#flash-to-sd-card https://docs.armbian.com/User-Guide_Troubleshooting/

There are those of us that spend months working on these things. There is nothing about this that is easy. It is a hobby to waste a lot of time on. If you really wanted to proceed further you are really going to need to hook up to the debug serial port to get an ideal of the boot messages that are occuring. From an earlier post it looks like the serial connection points were identified and hooking up a USB serial adapter to them would give more information. But getting a random TV box working is usually a many month project as a lot needs to be learned about this while environment first.

Well, I've been tinkering with different dtb's and Armbian versions, matching kernel 4.4 and using H96 Max RK3399 dtb as well, but the device does nothing. In fact, I entered the recovery to see if the SD card could be read and it didn't mount, then turned the device off through the button and now it does not turn on anymore. The red light does not go blue, I can still enter maskrom but if I want to boot Android normaly the device does nothing. I am kind of tired with this crappy TV box, wasting 2 days it's not worth it for something that costed 15€. My time is more valuable. Thank you for the help anyways.

The dtb files I've tried for rk3399 do not work, I've read that Firefly-RK3399 is very similar to this board, but even so it does not start. The small Rockchip chip is very difficult to see through a picture, at least with my phone camera. I tried with this picture: Anyways, I can write it here: RK808-D FAD7P841 1703