1. Okwu mmalite
This manual provides detailed instructions for the setup, operation, and maintenance of your Symcode Bluetooth 2D QR Barcode Scanner (Model: MJ-2020DA-BL). Please read this manual thoroughly before using the device to ensure proper functionality and to maximize its lifespan.
2. Ngwaahịa gafereview
2.1 Atụmatụ
- Njikọ 3-na-1: Supports 2.4G Wireless, Bluetooth 4.1, and USB 2.0 Wired connections for versatile operation.
- Tactile Feedback: Provides a mild vibration alert upon successful scans, with an option to mute the buzzer for quiet environments.
- Oke nnyefe agbatịkwuru: Up to 200m in open air via 2.4G wireless mode and 30m via Bluetooth mode.
- Ogologo oge ụlọ ọrụ mmepụta ihe: IP67 rated for dustproof and waterproof performance, capable of being rinsed with tap water and submerged for up to 30 minutes. Features a robust TPU protective case and withstands 6ft (1.8m) drops to concrete.
- Ndakọrịta sara mbara: Connects with smartphones, tablets, and PCs running Windows XP/7.0/8.0/Win 10, Windows Mobile, Android OS, and iOS devices.
- Nhazi Kachasị Elu: Offers over 180 configuration options, including editable prefixes/suffixes (up to 32 digits), partial barcode hiding, and adding keyboard keys/combinations.
- High Decoding Ability: Capable of decoding both 1D and 2D barcodes, including UPC/EAN, QR Code, Data Matrix, PDF417, Code 39, Code 128, and more, even with blurring or incompleteness.
- Nnukwu ike nchekwa: Internal memory can store up to 10,000 codes before uploading.
Ihe ngwugwu 2.2
Ngwungwu ahụ gụnyere ihe ndị a:
- Symcode Barcode Scanner (Model: MJ-2020DA-BL)
- Nchaji orddọ
- Akwụkwọ ntuziaka onye ọrụ (Akwụkwọ a)
2.3 Eserese ngwaahịa

Figure 2.3.1: Symcode Bluetooth 2D QR Barcode Scanner with its charging stand. The scanner is black and orange, designed for comfortable handheld use, and rests securely in its black charging base.
3. Nhazi
3.1 Ịchaji ihe nyocha ahụ
Before initial use, fully charge the scanner. Connect the charging cord to the scanner and a power source. The charging time is approximately 2.5 hours, providing a battery life of up to 30 hours of continuous use. Note that the base itself does not charge; the USB cable must be plugged directly into the scanner for charging.
3.2 Ụdị njikọ
The scanner supports three connection modes: Wired, 2.4GHz Wireless, and Bluetooth. Choose the mode that best suits your operational needs.

Figure 3.2.1: Visual representation of the scanner's three connection modes: Wired (USB cable for charging and data), 433MHz Wireless (with a dedicated dongle for PC), and Bluetooth (direct connection to mobile devices without a driver).
3.2.1 Njikọ wired
Connect the scanner directly to your computer using the provided USB cable. The cable serves as both a charging cable and a data transmission cable. This mode is plug-and-play and requires no additional drivers.
Njikọ ikuku 3.2.2 2.4GHz
For 2.4GHz wireless operation, plug the wireless dongle (if included, typically integrated with the charging stand) into your computer's USB port. The scanner will automatically pair with the dongle. This mode offers a transmission range of up to 200m in open air.
3.2.3 Njikọ Bluetooth
To connect via Bluetooth, ensure your device's Bluetooth is enabled. The scanner can pair with smartphones, tablets, and PCs. No driver installation is required. This mode provides a transmission range of up to 30m in open air.

Figure 3.2.2: The scanner demonstrates strong compatibility with multiple operating systems, including Android, Apple (iOS/macOS), Windows, and Linux, allowing seamless integration with various devices.
4. Ntuziaka ọrụ
4.1 Usoro nyocha nke barcodes
Point the scanner's light beam at the barcode you wish to scan. A successful scan will be indicated by a mild vibration. The buzzer can be muted for quiet operation if desired.

Figure 4.1.1: The scanner possesses superior decoding capabilities for both 1D and 2D barcodes, including Data Matrix, QR Code, and PDF417. It can even decode blurred or incomplete codes. Example barcodes shown include 20123456789, 2125551212, 4603146002134, na 1234567890135.
4.2 Data Upload Modes
The scanner supports two primary data upload modes:
- Ụdị nbudata ngwa ngwa: Data is synchronously uploaded to your connected device immediately after scanning.
- Ụdị Nchekwa: Scanned barcodes are stored in the scanner's 16MB internal memory (up to over 50,000 barcodes). Data can be uploaded to your device later when needed.

Figure 4.2.1: Comparison of Instant Upload Mode, where data transmits immediately, and Storage Mode, where data is saved internally for later batch upload.
4.3 Adjusting the Charging Stand
The charging stand's base can be rotated 45 degrees, allowing for flexible positioning of the scanner during charging or when used in presentation mode.

Figure 4.3.1: The scanner's base can be adjusted by rotating 45 degrees, providing ergonomic flexibility for various scanning setups.
4.4 Ngwa ndapụta
The Symcode barcode scanner is designed for various industrial and commercial applications, including but not limited to:
- Express and Logistics
- Nlekọta ụlọ nkwakọba ihe
- Supermarket and Retail
- File Room and Document Management

Ọgụgụ 4.4.1: Ọpụamples of the scanner's use in different environments, highlighting its versatility in express delivery, warehouse operations, retail, and file njikwa.
5. Nlekọta
To ensure the longevity and optimal performance of your Symcode barcode scanner, follow these maintenance guidelines:
- Nhicha: Regularly wipe the scanner's exterior with a soft, damp cloth. For the scanning window, use a lint-free cloth and a mild cleaning solution if necessary. Avoid abrasive cleaners.
- Nguzogide mmiri: The scanner is IP67 rated, meaning it is dustproof and can withstand immersion in water up to 1 meter for 30 minutes. It can be rinsed with tap water. However, ensure the charging port is dry before connecting the charging cable.
- Wepu Nchekwa: The scanner is designed to withstand drops from 6ft (1.8m) onto concrete due to its robust TPU protective case and internal consolidation. While durable, avoid unnecessary drops.
- Nchekwa: Debe ihe nyocha ahụ n'ebe dị jụụ ma kpọọ nkụ, ebe anwụ na-anaghị apụta kpọmkwem na oke okpomọkụ.
- Nlekọta batrị: To preserve battery life, avoid fully discharging the battery frequently. If storing for extended periods, charge the battery to about 50% and recharge every few months.
6. Nchọpụta nsogbu
If you encounter issues with your Symcode barcode scanner, please refer to the following common problems and solutions:
| Nsogbu | Ihe kpatara/ Ngwọta nwere ike ime |
|---|---|
| Scanner anaghị agbanye ọkụ. | Battery is low or depleted. Charge the scanner for at least 2.5 hours. |
| Scanner does not connect via Bluetooth/2.4GHz. |
|
| Scanner does not read barcodes. |
|
| Scanned data is incorrect or incomplete. |
|
If the problem persists, please contact Symcode customer support for assistance. Refer to the "Support" section for contact information.
7. Nkọwapụta
| Njirimara | Nkọwa |
|---|---|
| Nlereanya | MJ-2020DA-BL |
| Ntinye Voltage | DC5V±0.25V |
| Ugbu a | 25 mA (work); 95 mA (instantaneous) |
| Decoding Speed | 100 ugboro / sk |
| Wireless Range (2.4G) | Up to 200m (open air) |
| Oke ikuku (Bluetooth) | Up to 30m (open air) |
| Oge Nchaji | Awa 2.5 |
| Ndụ batrị | Awa 30 |
| Ụdị batrị | 1 batrị lithium ion (gụnyere) |
| Akụkụ ngwaahịa | 8 x 8 x 3 sentimita asatọ |
| Ibu Ibu | 1.59 pound |
| Ogo IP | IP67 (Dustproof, Waterproof) |
| Wepu Nguzogide | Withstands 6ft (1.8m) drops to concrete |
| Ụdị Barcode akwadoro | 1D: UPC/EAN, Code 39, Code 128, Codabar, Interleaved 2 of 5, Code 93, MSI, Code 11, RSS variants, Chinese 2 of 5. 2D: PDF417, QR-code, Data Matrix. |
| Nchekwa nke ime | 16MB (up to 50,000 barcodes) |
| Sistemu eji arụ ọrụ dakọtara | Windows XP/7.0/8.0/Win 10, Windows Mobile, Android OS, iPhone/iPad (iOS), Linux |
8. Nkwado na akwụkwọ ikike
Symcode is committed to providing high-quality products and customer satisfaction. While specific warranty details are not provided in this manual, please retain your proof of purchase for any warranty claims.
For technical support, troubleshooting assistance, or product customization inquiries, please contact Symcode customer service. Contact information can typically be found on the Symcode official websaịtị ma ọ bụ site na onye na-ere ahịa gị.
You can also visit the official Symcode store on Amazon for more information and support: Symcode Amazon Store.





