Attention: This tip does not apply to hörberts with a Bluetooth module. Please do not jiggle the switch if your hörbert has a built-in Bluetooth module.
hörbert has a very stable on/off switch. The manufacturer of the switch inserts a little grease into the switch. If this accumulates in the wrong place, this effect may occur. But that’s no problem: Just turn the switch on and off at least 50 times really fast and really energetically, then the grease splashes and the problem is solved.
Background knowledge: In a lamp the fat would simply go up in smoke with a spark, but there is no such amount of energy in hörbert. Therefore you may have to help mechanically. You can switch back and forth really powerfully and quickly, the switch tolerates it: We have deliberately chosen an oversized switch that resists playing children.