Switch turns on 2 sec and shutdown

May you can help me, i have a switch , without any shorts and i still try to keep it working, the backlight is turning on, also the display, just white and then it does turn it off…

didnt find any shorts to ground, the chips looking well, mean p13usb and the mq92 , usb c also nice.

any has some succusion

Where does it blink and go off
Does the first Nintendo logo come out?

Hello, i did the switch teardown and i can see the backlight. So i turn it on, the backlight starts to turn on and after 2 seconds the switch is getting off. no nintendo logo…nothing,just the screen is getting bright

have two switches with the same issue

It seems like your switch is most likely in RCM Mode. Just get tegra rcm and inject a payload