Turn off beep/buzz speaker sound in Samsung UV sterilizer
Samsung's wireless charger, equipped with a UV sterilizing function, stands out for its competitive pricing and innovative features. Although it doesn't quite match the original PhoneSoap products in some respects, it compensates with excellent compatibility. Unlike PhoneSoap, which struggles with the high camera island of devices like my Pixel 8 Pro, Samsung’s charger accommodates my Pixel without issue. However, the charger does have a significant drawback—it emits a loud beep after completing its 10-minute disinfection cycle. This can be particularly annoying since my routine involves setting my phone to charge and disinfect right before sleep, aiming for a fully charged and sanitized phone by morning. Unfortunately, there is no built-in option to disable the beeping sound, although it’s not too difficult to manually disable the speaker within the device.
The whole process will take you 5-10 minutes but will require very basic soldering skills.
Start by flipping the charger to reveal its underside. You’ll see four rubber stands—remove these using a screwdriver.
Figure 1.
Beneath each stand, there’s a screw. Unscrew each one to proceed.
Figure 2.Figure 3.
Flip the charger back over and gently pry off the cover. The plastic is durable, so you're unlikely to cause any damage.
Figure 4.Figure 5.
After taking off the cover you will see a few circuit boards
Figure 6.
With the cover off, you'll find several circuit boards inside. Locate the board that matches the image provided; it contains the problematic speaker marked as 'BUZ1' (red arrow). To access the speaker, remove two screws holding the circuit board in place, as indicated by the blue arrows in the image.
Figure 7.
Beneath the board, you’ll find two pins connected to the speaker. Unsolder these pins to detach the speaker from the board.
Figure 8.
Once the speaker is removed, reassemble the charger by following these steps in reverse order.
Congratulations! You can now enjoy your Samsung UV charger without any disruptive beeping. 🎉