Chosen Solution

Hello, I just finished a screen replacement on my Apple Watch Series 3, but the screen is pixelated with a bunch of different colors. Any idea what would cause this? Defective screen, or one of the connectors maybe? I’d like to get this fixed soon so I can use my watch again.

that looks like a bad screen. I would try reconnecting it again if you replaced it yourself. Try hard restarting it also.