How to enable wireless LAN on Raspberry Pi 4?

Hello, some time ago I completely turned off wireless radio on LibreELEC, because of interferences. Now I would like to turn it back on but I forgot how. Is it possible without SSH and without KODI running, by editing some config file before boot?

Thanks, Jan

Quote from chewitt

Have a look in config.txt (at the bottom) on the SD card. You probably configured an overlay which disables WiFi in device-tree.

Thanks a lot, right on the spot!