It is S905X 1GB/8GB, Xgody TX3Pro TV Box from Aliexpress, but seems it is fake. There is no such model in Xgody site.
PCB is marked CS_905X_TX_X8_V1.1 as on photo.
I tried several firmwares but none is working. Most of them even di not flashed properly.
Only P212 MXQ Pro S905X T95X 1G Android TV Stripped.img was successfully flashed but player is still not working.
On serial port there are many messages like this:
ADDR3-W[0x00000004]:0x55555555,R:0x3caed5ec
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