Can't read the card

Beyond the reading and writing module reading area

Move the card closer to the read-write module antenna

Antenna damaged

Replace the reader antenna

Parameter RF Power is too low

Recovery power parameter

The label is broken

Switch to another label test

The module is broken

Contact technical support

Unable to connect the read-write module

No power supply

Check power connection

Com occupied or broken

Check the port occupancy through the device manager and test whether the port can communicate

The cable is broken or not connected properly

Replace the data cable or check the connection status of the data cable

Com port is out of range

View com port through device manager, change com port number or restart computer

The module is broken

Contact technical support

The card reading distance is very close

The antenna is not properly connected

Check the antenna connection

Parameter RF Power is too low

Recovery power parameter

The label is inconsistent with the antenna polarization direction

Rotate the label 90 degrees

The module is broken

Contact technical support

The label is broken

Replace other labels