Thanks again for Your input!
It means I first need to buy a Sonic pad and probably a new hotend but I saw the discussion Ender-3 V3 SE: config settings to roll our own firmware please - #68 by sciencepatel
and ”TomasekJ, Firmware Release V1.0.7”
You tested it on the Ender 3 v3 SE?
Perhaps I could give it a try to start with if it´s worth it?