A: There are two reasons for this problem.
1). The scanning process is stuck.
Please restore the scan head, after restoration, the scanning app will restart to solve the stuck problem.
1. Go to Keyboardemulator App
2. Tap AppSettings> Slide to the bottom > click Factory data reset.
3. Waiting for Reset.
4. Press the scan again when finished to test.
Figure1. Factory data reset
5. After resetting the scanner head, please check the "Function" page and make sure the scanner is enabled and KeyCode is correct, see the below picture:
Note: Please select Barcode1D/2D based on your PDA version；139 is the KeyCode of the scan button; 293 is the KeyCode of the trigger on the handle. You can input the KeyCode by typing or pressing the button.
Figure2. Check if the settings are correct
2) Scanning head damaged.
If the light still does not come out after the previous 1) steps.
Please contact the technical team for support.