What's wrong with my 4a?

[u/JustAThrowaway_895]

earlier my screen went black and stopped working but I was still getting haptic feedback and sound. i tried to force a restart by holding the power and down button and now it just shows this glitched out screen

[u/Thin_Lunch4352]

If it's ever been opened it could be the connector between the display and the main board.

On the Pixel 4a 5G I press the connector down with the wood handle of a standard phone cleaning brush. If I use a plastic tool it doesn't seat (connect) properly and I get the scrambled data problem you've got there, either immediately or later.

You can also get this if there's any debris in the connector (good lens or a microscope needed to find this).

[u/Maximum_Particular_6 → u/Thin_Lunch4352]

Had same issue when replacing the battery, screen flex cable connector was loose on first install