Nespi Case+ Safe shutdown and reset buttons not working

[peppeuz]

Hi all, I've recently boutght a Nespi Case+ (this one) for my Raspberry Pi 3 B+, but I'm not able to safe shutdown or restart.

Some basic info:

• I'm using a custom version of RetroPie, an IMG a friend gave me based on RetroPie 4.4
• I've already switched ON the switch on the Nespi case board
• I have installed the latest version (1.4.0) of python-gpiozero and python3-gpiozero
• I've installed the script as explained here
• The red LED turns on when the Raspberry Pi is on
• I'm using a 3A power supply
• I've already tried writing enable_uart=0 on /boot/config.txt as suggested here (but I put it back to 1 since it didn't work)

When I push the buttons, apparently absolutely nothing happens.

When I try to run the SafeShutdown.py script with an SSH command, this is what happens.

I'm totally new to Raspberry Pi and RetroPie and I'm not the finest Linux expert, so I'm not really sure how to handle those errors.

Other relevant info (that I think could be relevant)

• results of cat /proc/cpuinfo
• refults of dpkg -l | grep gpiozero
• my /etc/rc.local file

Thanks in advance to anyone who will help me.

EDIT sorry to mess this up, but actually I've just bee able to make them work with the wonderful Multi_Switch script by @cyperghost

I'll leave the thread here just in case another Raspberry Pi 3B+ user with a Nespi Case+ need this.