I would not accept this answer. I have 20 dead pixels on my monitor, but my monitor is 60 inch big and not right in front of my face, so I do not notice them. Only if I am looking for them. However, the Steam Deck is right in front of your face, and you WILL notice every dead pixel. Just send it back and buy another one, the normal 512 GB version with a panel from Samsung.
I would not accept this answer. I have 20 dead pixels on my monitor, but my monitor is 60 inch big and not right in front of my face, so I do not notice them. Only if I am looking for them. However, the Steam Deck is right in front of your face, and you WILL notice every dead pixel. Just send it back and buy another one, the normal 512 GB version with a panel from Samsung.