I have the same issue and have followed all the advice given. I attempted to replace the SSD and add RAM (both checked before in other devices) , but now when I power it on, only the power button lights up, and nothing else happens. I initially thought I might have damaged something on the motherboard, so I ordered a replacement. However, I encountered the same problem with the new motherboard—this time, the fan starts up, but there is still no display on the screen. New power adapters have been checked (small pin and usb-c), external screen either. When I remove ram it shows the codes (3 long, 2 short blinks). Model 14-dy0505sa