"on" message on jynxbox ulta hd v3

[negro]

i runned 237 file on my original jynxbox ultra hd v3 and the box rebooted after that point the box showed A5H . i runned NA factory file v8 with the loader but when the box rebooted came back with "on" message and after that i only see "on" in the box but i tried three diferent tvs and no working in any input + remote control don't work.

i don't know if i need a diferent factory bin file or install a video file with the factory

i will thanks any help , because i tried evrything and nothing happen.