[Galaxy Note 5] Why is there a noise heared when charging on the wireless charging pad?
While charging the device, the fan inside the wireless charger will
activate to cool the charger.
On this process, you may hear a slight sound however this is intended
concept to prevent charger overheating and normal operation.
You can reduce noise by deactivating the fan.
To deactivate, open the Apps screen, tap Settings → Accessory, and then
tap the Fast wireless charging switch to deactivate it. Please note turning
off the fan will result in a slower charging speed.
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