How to get back to "factory-sttings"?

Hi there,

still struggeling with some Wifi issues on my BBGW. I’ve changed so many things, so it might be useful to go back to the initial setup. I already flashed the latest image on eMMC. But how do I get rid off all the things I’ve changed in the user and system settings, like all the conf files?

Kind regards

erase the sdcard and flash it, or write out a card that can rewrite the onboard memory.