Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Symcode Wireless 2D Bluetooth Barcode Scanner. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.

Setup
Package Contents
- Symcode Barcode Scanner (Model: MJ-2020DA-BL)
- Charging Cord
- User Manual
- Scanner Stand
Initial Charging
Before first use, fully charge the scanner. Connect the provided charging cord to the scanner's charging port and a suitable USB power source. A full charge takes approximately 2.5 hours.

Connection Modes
The Symcode scanner supports three connection modes:
- 2.4G Wireless Mode: For wireless connection via the included USB dongle. Delivers up to 200m transmission in open air.
- Bluetooth 4.1 Mode: For wireless connection to Bluetooth-enabled devices. Offers up to 30m transmission in open air.
- USB Wired Connection: For direct connection to a computer via USB 2.0.
Switching between modes is done conveniently through the scanner's settings or by scanning specific configuration codes (refer to the included quick start guide for specific codes).
Stand Assembly
The scanner comes with an adjustable stand for hands-free operation. The stand can be adjusted to a 45-degree angle. To change the angle, disassemble the base by depressing the recessed tabs on the bottom of the stand.

Operating Instructions
Scanning Modes
The scanner offers three distinct scanning modes:
- Traditional Manual Trigger Mode: Press the trigger button to scan each barcode.
- Intelligent Sensor Mode: The scanner automatically activates when changes in ambient brightness are detected, allowing for hands-free scanning when placed on the stand.
- Continuous Scan Mode: The scanner continuously emits a scan beam, ideal for high-volume scanning without repeatedly pulling the trigger. This mode also supports hands-free operation with the stand.

Upload Modes
The scanner supports two data upload modes:
- Instant Upload Mode: Data is synchronously uploaded to your connected device immediately after scanning.
- Storage Mode: Barcode data is stored in the scanner's 16MB internal memory (up to over 50,000 barcodes). Data can be uploaded to your computer later when needed.

Barcode Compatibility
The Symcode scanner is capable of reading a wide range of 1D and 2D barcodes, including:
- 1D Barcodes: UPC/EAN, UPC/EAN with Supplemental, UCC/EAN 128, Code 39, Code 39 Full ASCII, Trioptic Code 39, Code 128 Full ASCII, Codabar, Interleaved 2 of 5, Discrete 2 of 5, Code 93, MSI, Code 11, RSS variants, Chinese 2 of 5, and extended ASCII support for Code 128 barcodes.
- 2D Barcodes: PDF417, QR Code, Data Matrix.
It can read barcodes from various surfaces, including screens and paper, and is designed to read damaged, fuzzy, reflective, and smudged barcodes.

Vibration Alert and Multi-Language Support
The scanner provides a tactile vibration alert upon successful scanning, which can be useful in noisy environments or when a quiet operation is desired (buzzer can be muted). The vibration function can also be turned off.
The scanner supports multiple languages, including English, Spanish, German, French, Italian, and Japanese. The factory default language is English. Ensure the scanner's language setting aligns with your computer's keyboard language for correct barcode output.

Advanced Configuration
The barcode reader has over 180 configuration options. You can add prefixes and suffixes (up to 32 digits) to scanned data, hide parts of a barcode, or add keyboard keys/combinations to the scanning operation. Refer to the detailed user guide (often provided as a separate booklet or PDF) for specific configuration barcodes and instructions.
Maintenance
Cleaning and Durability
The Symcode scanner features an industrial dustproof and waterproof design, with IP67 level performance. It can be rinsed with tap water and even soaked in water for up to 30 minutes. The external TPU protective case is twice as thick as similar products, and internal core parts have triple consolidation treatment. This robust construction allows the scanner to withstand repeated 6ft (1.8m) drops to concrete floors.
To clean the scanner, use a soft, damp cloth. For stubborn dirt, mild soap can be used. Ensure the charging port is dry before connecting the charging cable.

Battery Care
The scanner is equipped with a 2200mAh Lithium Polymer battery. To maximize battery life:
- Avoid fully discharging the battery frequently.
- Store the scanner in a cool, dry place when not in use for extended periods.
- Charge the battery regularly, even if not in constant use, to maintain its health.
Troubleshooting
Common Issues and Solutions
- Scanner not connecting:
- Ensure the scanner is fully charged.
- Verify the correct connection mode (2.4G Wireless, Bluetooth, or USB Wired) is selected on the scanner.
- For Bluetooth, ensure your host device's Bluetooth is enabled and the scanner is paired.
- For 2.4G Wireless, ensure the USB dongle is securely plugged into your device.
- Barcodes not scanning:
- Check if the barcode type is supported by the scanner.
- Ensure the barcode is clean and not excessively damaged or smudged.
- Adjust the distance and angle of the scanner to the barcode.
- Ensure sufficient lighting.
- Incorrect barcode output:
- Verify that the scanner's language setting matches your computer's keyboard language.
- Check for any enabled prefix/suffix settings that might be altering the output.
- Incompatibility with Square Register:
- Please note that this scanner is not compatible with Square Register systems.
Specifications
| Model | MJ-2020DA-BL |
| Input Voltage | DC5V±0.25v |
| Current | 25 mA (work); 95 mA (instantaneous) |
| Decoding Speed | 100 times / sec |
| Wireless Range (2.4G) | Up to 200m (open air) |
| Wireless Range (Bluetooth) | Up to 30m (open air) |
| Charging Time | 2.5 Hours |
| Battery Life (Continuous Scanning) | 30 Hours |
| Battery Type | 1 Lithium Polymer battery (included) |
| Product Dimensions | 4 x 2 x 2 inches |
| Item Weight | 14.4 ounces |
| Connectivity Technology | Bluetooth, USB Cable |
| IP Rating | IP67 (Dustproof, Splash-proof, Waterproof) |
Warranty and Support
Symcode is committed to providing high-quality products and excellent after-sales service. For any questions, technical assistance, or warranty inquiries regarding your barcode scanner, please contact Symcode customer support through the retailer's platform or the official Symcode website.
For more information about Symcode and its products, you can visit the official brand store: Symcode Brand Store.





