I have read several articles stating several different reasons and solutions but none have worked so far.
It's a 1st gen 20gb (switched to 160 right after I bought it when they first came out). No wifi.
It shuts down after just 2 or 3 seconds, I hear 3 beeps and the green light turns red...
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