Hyper Pixel 4.0 Square Slight Flicker PI Zero

Fully working display no issues other than the slight faint sign of flickering. I’m hoping for some help - I’m running latest ver of Raspberry pi and the OS is fully updated.

Any pointers appreciated - my project is hung up until I fix the product - Thank you

What are you using for a power supply?
And what is its max current rating?

I’m also having this issue.

My screen is flickering a lot.

When I had a Pi Zero 2 on a 5V/2.4A PoE → microUSB adapter, it was working fine.

Now that I’m running it on a Pi 4B (4GB) on a 5V/4A PoE → USB-C adapter, it has this flicker. Some of the pins got bent on the end of the GPIO extender when I was taking it out from using it with the Pi Zero, but I did my best to straighten them. Not sure if that’s related or not.

The intense flickering sucks :(. Half the vertical resolution is gone now too.

Switching to a USB-PD supply off a CalDigit Hub, and it’s working without flickering now.

I wonder if that other adapter simply didn’t have enough power or if there’s something else going on because the Pi Zero 2 W was fine.