The Chinese Wisdom Share Smart Cloud TV freezes. Solution to problem is firmware / removing stripes

I recently encountered such a problem that when I turn on a Chinese TV (taken in Khorgos), it simply freezes on the initial screensaver with the inscription "Wisdom Share Smart Cloud TV". I found out how much it would cost in the service center to solve this problem, they said that from 15,000 tenge to 60,000 tenge. I called the service only after I had been tormented for several hours in searching for button combinations for hard reset (forced reboot, reset settings). As a result, I realized that there is no such thing here. Although the TV is on android.
I couldn't talk to the masters. Usually the managers answered, who offered to take the TV to the service, and pick it up after the repair. I didn't bother with it, took a screwdriver, unscrewed the back panel and looked at the name of the motherboard. Then I found the drivers in Google (it was not easy to do, there were a lot of links with all sorts of spam), threw them on a flash drive and installed a new firmware. Unfortunately, I also encountered the problem of a strange pixel display (the lines went in different directions). I managed to fix it in a couple of seconds by going to the engineering menu. For the TP.MS358.PB801 motherboard, this is easy to do - press Menu 1147, then Panel Setting - Panel Division - and then left or right (set the appropriate settings).
That's it! Done!
In fact, if it weren't for a long firmware search, then the whole job would take 3-4 minutes... no more. And spending your time on trips to the master + giving 15-60k tg - I don't see the point.
I hope this video helped you!
P/S: take expensive TV (from 400k and above). The picture will be better (4K) and will work faster. But on official TV, exactly the same problems happen with the firmware. This TV has worked for 3 years without problems. I think it will work for a long time.