Hi,
Do you have any scheduling events or set a safe shutdown level?
Can you please let me know the firmware version?
If you are not registered on the power portal, register and update your device.
@jy_tang-5409 - in my case the Pi was shutting down (I think) due to the battery being too low - if you read the docs, when the battery is < 5% then the pi will shutdown.
in my case i was running without a battery - but in my testing it seems the shield looks at the last known state and takes that as fact. I let the battery charge to full and I can run with or without the battery (and L2 is solid green) - but when the battery is <5% it will boot then shutdown (though it doesn’t appear to gracefully shutdown, it just pulls the power!)
I can’t see from your video if you have a battery installed - but your L2 is solid green, so that means you have might have a different issue to me. But check your battery, and also check the capacity and health just to eliminate those possibilities.