CommentStreams:504068f9aaf6c78cfe5961ad669e9ad7

I installed and used an x728 hat on an RPi4 a few months ago, and it worked great. Unfortunately, I had to do a complete reinstall of the operating system on that Pi, and when I went to reinstall the x728... I can't get it to work. When I try to boot it up (by applying power from the power brick via the usb-c port on the x728), I can see the red and green lights on the RPi start to flash as they would during startup, but then it simply shuts down after about three seconds. This happens every time. In an effort to troubleshoot, I tried:

- disconnecting the x728 hat

- deleting the /etc/x728pwr.sh and /usr/local/bin/x728softsd.sh

- reconnecting the x728 hat (without batteries)

- booting up RPi and running sudo bash x728.sh

- shutting down RPi, moving power source to x728 hat, and installing batteries

- turning on power to x728

The result is always the same... I can see the red and green lights on the RPi flash for about three seconds and then it just shuts off. If I remove the batteries from the x728, and move the power source back to the RPi (usb-c connector) and apply power, the RPi boots up just fine.

It simply won't boot up if power is coming from / or via the x728 hat. Any ideas?