Manually adding the Safe Shutdown Script
This process works for all devices.
All pre-made images available to download are already configured with this script
2. Edit the config.txt file
sudo nano /boot/config.txt
3. Add the following lines to the end of your config.txt file:
#Shutdown Buttondtoverlay=gpio-shutdown,gpiopin=3
#Poweroff Trigger
dtoverlay=gpio-poweroff,gpiopin=4
4. Save your changes
5. Reboot with:
sudo reboot
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