Troubleshooting
Troubleshooting

Troubleshooting

The table below outlines possible troubleshooting cases that may occur when using the sled related to data communication, barcode decode, and Bluetooth.
Troubleshooting the RFD4031
Problem
Cause
Solution
The RFID sled does not read tags.
The RF region configuration is not set.
Use the 123RFID Desktop or 123RFDID Mobile application to set the regulatory region or country operation per the application instructions.
The RFID sled is attached to mobile device and it is not responsive to a RFID application, even after the trigger is pressed.
Battery is too low and not able to power the RFID sled.
Press the trigger for a couple of seconds to power the RFID sled On. The RFID sled LED blinks amber when it is turned On. (By default, pressing the trigger turns On the RFID sled if it is in Off mode. However, the RFID sled can be disabled in which case this step is not necessary.) Place the RFID sled in the charging cradle. The RFID sled blinks amber LEDs indicating charging commenced.
Zebra supported mobile computer is not properly inserted in the RFID Sled.
Reinsert the Zebra supported mobile device securely in the RFID sled and ensure that the USB cable is correctly inserted.
Damaged battery.
If the RFD4031 RFID sled LED does not blink amber after sitting on charging cradle for a while, request service to replace battery.
The RFID31 sled is responsive but cannot read tags.
Battery is critically low.
Place the RFID sled in the charging cradle. The RFID Sled LED blinks amber. The RFID sled can be used when its LED turns on momentarily amber or green upon removal from charging cradle.
The RFD4031 RFID sled LED blinks fast amber when in the cradle.
Charging error.
Restart charging by removing the RFID sled from the cradle and inserting it back in the cradle. If issue persists, request service to replace battery.
The RFID sled LED blinks red, or LED blinks red alternating with green or amber while in use (not while charging).
Battery end of life indication.
Request service to replace battery.
Zebra supported mobile computer battery is not charging.
Charging cradle was unplugged from AC power.
Ensure the charging cradle is receiving power.
The Zebra supported mobile computer is not fully seated in the cradle.
Remove and re-insert the zebra supported mobile computer into the cradle, ensuring it is firmly seated in the charging cradle.
Data Communication
During data communication with a host computer, no data transmitted, or transmitted data was incomplete.
Sled removed from cradle during communication.
Replace the sled in the cradle and re-transmit.
Incorrect cable configuration.
See the system administrator.
Communication software was incorrectly installed or configured.
Perform setup.
During data communication over Wi-Fi, no data transmitted, or transmitted data was incomplete.
Wi-Fi radio is not on.
Turn on the Wi-Fi radio.
User moved out of the range of an access point.
Move closer to an access point.
During data communication over Bluetooth, no data transmitted, or transmitted data was incomplete.
Bluetooth radio is not on.
Turn on the Bluetooth radio.
You moved out of range of another Bluetooth device.
Move within 10 meters (32.8 feet) of the other device.
Decode
The sled does not decode with reading barcode.
Scanning application is not loaded.
Load 123RFID Mobile on the device or 123RFID Desktop on the PC. See the system administrator.
Unreadable barcode.
Ensure the symbol is not defaced.
Distance between exit window and barcode is incorrect.
Place the device within proper scanning range.
Device is not programmed to generate a beep.
If the sled does not beep on a good decode, set the application to generate a beep on good decode.
Battery is low.
If the sled stops emitting a laser beam upon a trigger press, check the battery level. When the battery is low, the sled shuts off before the low battery condition notification.
Bluetooth
Device cannot find any Bluetooth devices nearby.
Too far from other Bluetooth devices.
Move closer to the other Bluetooth device(s), within a range of 10 meters (32.8 feet).
The Bluetooth device(s) nearby are not turned on.
Turn on the Bluetooth device(s) to find.
The Bluetooth device(s) are not in discoverable mode.
Set the Bluetooth device(s) to discoverable mode.