ISSUE

  • Cannot read barcode
  • Scanned data does not come


APPLIES TO

Model

PM5

PM5



RESOLUTION

If the scanner is activated but no data comes to the host device, check the PM5's status indication (LED and beep sequence) when you tried to read the barcode.

Symptom
Cause
Solution
Beep SequenceLED Sequence
Twice
(Short medium → High)		Red flashDecoding failed

When the scanner failed to read the barcode, the beep rings twice (Short medium → High) and LED flashes red.

Aim the barcode referring to the below instruction and try again.

Three times
(3x Short low)		RedDecoding success,
but Bluetooth is not connected

This indicates the scanner succeeds in reading the barcode but is connected nowhere with Bluetooth.
Check the connection between the host device.

Find how to confirm whether the PM5 is connected.
If the scanner is not connected, connect it by Tap-to-Pair or Scan-to-Pair, or Settings.


Bluetooth Disconnection
Find the case that the scanner is disconnected in the following and prevent the disconnection.

  • Out of range

The connection may be lost if the host device and PM5 are about 10m or more apart.
(The Bluetooth range depends on the working environment and Bluetooth power class, etc.)

  • Host device turned off or PM5 rebooted

If the host device is turned off or PM5 reboots accidentally (Battery discharges, etc.), the device and scanner will be disconnected.

  • Bluetooth turned off from host device

Turning off the Bluetooth feature will disconnect the connection between the host device and scanner.

Once
(Short high)		Green flashDecoding success

You didn’t get the scan data even though reading the barcode is successful, perform reset the PM5 and try again.

Refer to PM5 Reset (링크걸 FAQ 작성하기!) for more detail.






Not Resolved?

Refer to similar troubleshooting guides.