Thank you for your feedback and assurance. I needed to discard that option so your feedback is so valuable. In the end, I have used the good ol' method: copy Pre made SD Image to SD card and set things up anew.

I have elaborated the table below to clarify the relationship between an SNES USB Gamepad , its Retroarch Port Binds and Default Actions as a result of Hotkey Binds. It's just a bit of an expansion of the Default joypad hotkeys section in the Wiki article on RetroArch configuration

Setting a specific Hotkey Bin to pause the gameplay [PAUSE] seems particularly useful when setting AI Service Pause Toggle to ON (RGUI > Settings > AI Service): Retroarch will pause gameplay, allowing time to read translated text, to continue only upon pressing the Pause Hotkey Bind. And of course, Hotkey Binds for actions can be redefined.

Cheers,

ODROID XU4 build flags aren't perfect?