USB Duplicator - Troubleshooting

Updated on Feb 18, 2026

Symptom Possible Cause Recommended Solution
There is no display on the LCD or the unit doesn’t power on. The internal power switch is set to off. Check the switch located on the back of the duplicator, near the power supply and make sure that it is switched to the On position.
The power voltage on the duplicator doesn’t match the voltage of the power outlet. Adjust the switch located on the back of the duplicator, near the power connector, to the local voltage rating.
The duplicator was stored in cold temperature. If the duplicator was stored in a location where temperatures dropped below 32°F (0°C) within the past 24 hours, leave the system in a warm room with a temperature of at least 65°F (19°C) for 4 hours prior to turning it on.
The duplicator doesn’t recognize the Source device. The Source device is not connected securely to the Source port. Make sure that the device is connected, securely to the Source port. The Source port is the top-left most port and is marked with a label.
The Source device is defective. Run the “Verify Source” function to confirm that the source is readable. If the device does not pass the “Verify Source” check, try duplicating using a different Source device.
Your Source is a USB flash drive that has unwritten sectors. Unwritten sectors on the Source can result in read errors. Run the “Rebuild Source” function and then try duplicating again.
The duplication process finishes successfully but the Target devices are not readable. There were issues that occurred when running a Brief Copy. Change the “Copy Mode” to Full Copy. This Copy Mode will take longer to complete, but it will resolve most data related issues.
The data did not copy over accurately. Run the “Compare” function to check that the data on the Targets and Source are identical.
The “Read Error Skip” or “Write Error Skip” settings are enabled. It is possible that the skipped data is causing this issue. Make sure that “Read Error Skip” and “Write Error Skip” are turned off.
The failure rate is high. Your Target devices’ quality is poor. Try using a higher-quality brand of USB devices.
There are errors on the Source device. Run the “Verify Source” function to confirm that the source is readable. If the device does not pass the “Verify Source” check, try duplicating using a different Source device.
Some Target devices aren’t being copied to. The duplication process was started before the device was recognized. Make sure that the Green indicator LED is lit next to every inserted Target device before starting a duplication job.
Your Target devices’ quality is poor. Try using a higher-quality brand of USB devices.