Dear owners of this console. We kindly request you. Please make a backup of the stock firmware of this device. I put Super su for control and updated the binary code, as a result, at startup, only the ever-hanging logo. Wipe partitions via Android Recovery and TWRP did not help.
Recovery twrp 3.2.2 works only with the air mouse, the backup creates, restores, the reboot does not work, only you need to distort the power.TWRP_322.zip
The file is written to an SD card or flash drive. After that, we go into Android Recovery (we press the microswitch through the AV socket with a toothpick and apply power, after 10-20 seconds the Android Recovery window appears). Go to Apply update From EXT, select Update From SDcard or Update From udisk (depending on what you have the TWRP_322.zip file). After downloading the program, go to the "Backup" item, check the boxes on all sections and make the swipe slider (again, I need an air mouse). Do not repeat my mistakes. ALWAYS AT THE BEGINNING MAKE A BACKUP.