NESPi with SafeShutdown. Preloaded Retropie MicroSD card. Where and how do I install Safe shut down script?

[caliskier]

Hey so Grandma got my son a NESPi case, Raspberry Pi 4 and a retropie SD card (with my help). I am haveing trouble figuring out how to install the "safetshutdown script" with a retropie sd card that just boots up retropie.

I have searched the web, youtube, and all the instructions and I cannot figure this out. I am sure its easy, but cant see where to load it in options, cant get to a bios or raspberry pi os screen. The manual says you can use the shutdown button if you installed the safe shutdown script properly, but does not tell you how to do that, which is why I am here.

Pi Model or other hardware: NESPi 4 Case
https://www.amazon.com/Retroflag-Controllers-Heatsinks-RetroPie-Raspberry/dp/B0787348WK/ref=sr_1_6?keywords=nespi+4+case&qid=1706383088&sr=8-6
Power Supply used: Came with NESPi 4 Case and working
RetroPie Version Used (eg 3.6, 3.8.1, 4.1 - do not write latest):
Built From: Preloaded Retropie from Amazon:
https://www.amazon.com/Sonicon-Preloaded-Emulation-Retroarch-Raspberry/dp/B09LHB9HX9/ref=sr_1_1_sspa?crid=2SH4HUP466RDP&keywords=preloaded+retropie+sd+card&qid=1706380962&sprefix=preloaded+ret%2Caps%2C170&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
USB Devices connected: Xbox controller, Keyboard, mouse
Controller used: Xbox Controller
Error messages received: None
Verbose log (if relevant): None
Guide used: Retro pie just worked, guids I have tried to follow assume you are starting from scratch
File: https://github.com/RetroFlag/retroflag-picase
Emulator: Retropie
Attachment of config files: None
How to replicate the problem:

[sleve_mcdichael]

1: Preloaded SD cards are not suppprted.

2: There are instructions to install the shutdown script on the github page that you have linked.

[caliskier]

@sleve_mcdichael

Thanks sleve, if they are not supported, are the intstructions not for my scenario?

My retropi card says it is supported if you install it "properly" how do I accomplish that?

[mitu]

My retropi card says it is supported if you install it "properly" how do I accomplish that?

Talk to the vendor that sold you the contraption, we're not offering support for scammers here.

If you wish to get support here in the forums, start with the official RetroPie image from https://retropie.org.uk/download.