Almost like my Switch I've got from ebay.
At first I had a blue screen, I pressed hard on the SOC and it stopped showing blue screen.
Now the screen doesn't show anything, even the backlight will not turn on.
Slow charging appear to be fine at 0.4A, didn't find shorted caps.
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi