Kercan Barcode Scanner Manual May 2026
Kercan does not typically provide user-updatable firmware. If the scanner is defective, contact seller for warranty replacement instead of trying to flash it.
If you scan barcodes from a black smartphone screen with white bars (inverse), you need to enable “Inverse 1D/2D Reading.” The manual contains a dedicated barcode for this.
If you have misconfigured your scanner, a factory reset is your best friend. Look in the manual for “Restore Factory Defaults.” Once scanned, all settings revert (beep on, USB HID mode, no suffix, all symbologies enabled). kercan barcode scanner manual
Even with the manual, issues arise. Here is a systematic diagnostic table.
| Symptom | Likely Cause | Solution (from Manual) | | :--- | :--- | :--- | | Scanner beeps but no data appears | Wrong interface mode | Scan “USB HID Keyboard” barcode from manual. | | Laser/light turns on but won’t read | Disabled symbology | Scan “Enable All Barcodes” then factory reset. | | Wireless model pairs but doesn’t send data | Battery saving mode | Charge fully. Scan “Wake Up” barcode. | | Scanner reads barcode twice | Bounce-back trigger | Enable “Trigger Release Timeout.” | | QR codes read as gibberish | Encoding mismatch | Set “QR Code UTF-8” mode in manual. | | Bluetooth keeps disconnecting | Interference or low battery | Move within 10m. Unpair and repair via manual steps. | Kercan does not typically provide user-updatable firmware
A: Absolutely. The manual provides a “Prefix” programming section. Scan the “Set Prefix” barcode, then scan the alphanumeric barcodes for the characters you want (e.g., “SKU-”), then scan “Save.”
| Issue | Solution | |-------------------------------|--------------------------------------------------------------------------| | No power (wireless) | Charge scanner for 2–3 hours | | No beep / LED | Check USB connection or restart device | | Scans incorrect characters | Scan “Factory Reset” barcode, then reconfigure | | Bluetooth not pairing | Remove old pairing from host and re-pair | | Slow or missed scans | Clean scan window, adjust distance, or scan configuration for sensitivity| If you scan barcodes from a black smartphone
Retail POS systems often require an “Enter” keypress after each scan.
How to program (Standard Kercan method):
If you don't have the manual, a universal workaround is scanning a "Enter" barcode from an online generator, but Kercan manuals provide model-specific hex values.
