How to solve 'Error Message: Device has been pulled/polled out' on AmScope MU USB3.0 Microscope?
- GglenbentleySep 12, 2025
The 'Error Message: Device has been pulled/polled out' on your AmScope Microscope means that the USB port used with the camera is not USB2.0/3.0 (depending on camera model) and/or powered. Use a compatible USB port that is the same type as your camera and ensure that the ports are powered by plugging it directly into the computer in the rear USB. Also, change the USB cable to see if that resolves the issue. If not, try another USB2.0/USB3.0 powered port or a different computer.










