Diagnosis
The constant high-pitched buzzing is electrical coil whine from the camera's internal power regulation components. This is a prevalent, non-critical issue with many Wyze Cam v3 units and does not indicate the camera is broken or about to fail. It's an acoustic byproduct of components vibrating at high frequency.
How to Fix It
Start by eliminating external power issues, as a poor power source is the most common fix.
- Unplug the current USB power adapter and cable from both the outlet and camera.
- Replace them with the official Wyze power adapter and its short, thick cable. If that's unavailable, use a high-quality, name-brand 5V/2A (or greater) USB adapter and a short, high-gauge power-only USB cable (data cables can sometimes cause issues).
- Plug the new adapter directly into a wall outlet, not a power strip or surge protector, to ensure stable voltage.
- Power on the camera. The whine should be significantly reduced or inaudible.
If That Didn't Work
If a premium power supply doesn't help, the whine is inherent to that specific camera unit. Since the noise level varies between individual cameras, your options are:
- If the camera is still under warranty, contact Wyze Support. Describe the constant high-pitched noise and reference "coil whine." They may offer a replacement, as some production batches are known to have this issue more prominently.
- For a camera out of warranty, you can try relocating it to a less sensitive area where ambient noise masks the whine, like a garage or outside under an eave.
Heads Up
The whine is often most noticeable in quiet indoor settings at night. There is no firmware setting to disable this hardware phenomenon, and enclosing the camera in a case or housing will not effectively dampen the high-frequency sound.