Someone reported it, Samsung understood their concerns and thanked them for their feedback. But that’s about it.
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Someone reported it, Samsung understood their concerns and thanked them for their feedback. But that’s about it.


I ordered one of these off Ali Express. An oscilloscope app showed it was about 40Hz vibration from the weight on the motor, far far from being ultrasonic. Got a refund, it ended up in the recycling.
Your system is a POS.