Issue reconfiguring controller A button from B button

[violinistgamer88]

Pi Model or other hardware: (B, B+, 2 B, 3, X86 PC etc..): B
Power Supply used: (If using a Pi): Official Raspberry Pi Power Supply Adapter with 3PCS IoTCrazy Heatsink, for Raspberry Pi Micro-USB Boards, Support 3 B+/Pi 3 /Pi Zero W/Pi Zero/Pi 1 /Pi 2 /Pico, 5.1V 2.5A, US Plug, White (Official)
RetroPie Version Used (eg 3.6, 3.8.1, 4.1 - do not write latest): 4.8
Built From: (Pre made SD Image on RetroPie website, Berryboot, or on top of existing OS etc.. - please provide the filename of any image used) Raspberry Pi Imager
Controller used: suily 2 Pack USB Wired Controller for NES Games, PC USB Controller Retro Gamepad Joystick Raspberry Pi Gamepad Controller for Windows PC Mac Linux RetroPie NES Emulators
Emulator: (Name of emulator - if applicable): NES
How to replicate the problem:
When I initially configured the controller, I accidentally programmed the A button to the B button. I am trying to reconfigure the controller, but when I try to do so from the Main Menu (Configure Input), the popup will not let me select "Yes" to the question "Are you sure you want to configure the input?". When I press the B button (programmed as the A button), it just takes me back to the Main Menu.

[sugarfree]

You can try to reset the input configuration from terminal window. With a help of a keybord press F4 and run :

sudo ~/RetroPie-Setup/retropie_setup.sh

Then go
Manage Packages -> Core Packages -> emulationstation -> Configuration or Configuration / Tools -> emulationstation

and choose to Clear/Reset Emulation Station input configuration.

[violinistgamer88]

@sugarfree thanks! Good to know there is a way to do this from the terminal window. I ended up following the instructions from this video to reset the emulation station input configuration for the controllers.