Atari Main Menu > Forget a Controller for Bluetooth devices. If you’re talking about configuration, just use Configure a Controller again and you’ll start from scratch.
Atari przemo3336 hm, I don’t think I’ve seen that situation before. The controller configs that ES uses are stored in /userdata/system/configs/emulationstation, in both es_last_input.cfg and es_input.cfg. You’ll probably want to Ctrl+F the name of the controller as it appears when you connect it to Batocera.
JK1974 Any hints also regarding my question at https://forum.batocera.org/d/6263-competition-pro-configuration-for-vice-and-uae-core-anyone? Or to be more precise: In which config file is the controller configuration stored so that I could edit it “manually” via terminal?