SamyGO

In the discussion it is explained that the widget appearing is quite tricky.
You have to try with USB in and switch ON or viceversa or even when you are already in SH insert the key.

If the file structure in the key is OK at the end you will succeed.

You can downgrade with FW 0000 and then upgrade again.

Wow ... risky job [emoji6]. I will have a look but 22 inches J serie smart does not exist. I have to look for a 32" and hope the panel will work. The physical fit is the last of the related problems. It would be interesting to open a section for this kind of jobs that will become hot in a couple o y...

If I remember well now it is 2117 (the last official). I tried downgrade to 0000 (one year ago it was the solution) but the upgrade stops at 28% with an error (no switch off). Whatchdog is off. I think the best is to look for a J series second hand Motherboard as suggested by sectroyer. The pint is ...

Yes. But I need to find a J compatible with my panel. Could you assist me in this game ?

Inviato dal mio SM-G960F utilizzando Tapatalk

Tested several pen with the same issue.

Inviato dal mio SM-G960F utilizzando Tapatalk

Mother Board [emoji23] Mo Bo

Inviato dal mio SM-G960F utilizzando Tapatalk

You are lucky. I do not have the apps even with the flash drive ...

Good point.
Do you think there is any chance to find a compatible mobo that supports also H.265 ? This would be worth.
The best would be to find one rootabe [emoji6]

Inviato dal mio SM-G960F utilizzando Tapatalk

It seems you have to delete some log files that are growing up.
If you have root, ftp on port 21 and look for big log files created by SamyGo.