Pi 4 crashing after a few seconds

1

I bought some panels from amazon

Amazon P3 panel

Also got an Adafruit bonnet and followed their installation instructions to the letter. When I launch the demo 0, the screen works fine for about 2 seconds after which the pi crashes. It seems to shut down as I get the 10 green flashes on the pi green LED.

I then tried the whole lot on a Pi B+ I had kicking around and it all worked fine. I did try slowing down the GPIO on the pi 4 but no change and crash after a few seconds. I also have a meaty 8A 5V power supply so no issues there.

Just wondered if anyone else had same problem and if so any ideas on remedy?!

2

I have not seen this with Pi4. which I use in my projects.
Have you tried sending power to the Pi4 via USB-C for debugging purposes while you do this?