SinoTrack ST-906L-SA
SinoTrack 4G GPS Tracker ST-906L-SA User Manual
Model: ST-906L-SA
1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your SinoTrack 4G GPS Tracker (Model: ST-906L-SA). This device is designed for real-time tracking and anti-lost alarm functions for various vehicles, including cars, motorcycles, trucks, and taxis. It utilizes 4G LTE, GSM, GPRS networks, and GPS satellites for accurate positioning and monitoring.

Image 1.1: SinoTrack 4G GPS Tracker ST-906L-SA with its mobile application interface.
2. What's in the Box
Please verify that all items listed below are included in your package:
- 1 x ST-906L 4G Tracker (No voice function)
- 1 x Power cable
- 1 x Locker Relay
- 1 x Sticker
- 1 x Original Box

Image 2.1: Package contents of the SinoTrack 4G GPS Tracker.
3. Specifications
| Product Dimensions | 3.94 x 1.97 x 0.98 inches |
| Item Weight | 5.6 ounces |
| Model Number | ST-906L-SA |
| Batteries | 1 Lithium Polymer battery required (built-in 150mAh) |
| Connectivity Technologies | GPS, LTE, GSM |
| Special Features | Free Tracking System, Cut Engine Off, Real Time Tracking, SMS Alert Notification, Geo-Fence, Location History, Rechargeable |
| Supported Application | Text Messaging, Web Search |
| Specific Uses | GPS tracker for car, car alarms, car anti-lost alarm tracker |
4. Setup Guide
4.1 SIM Card Installation
The device requires a 4G SIM card with active data and SMS services. Ensure the SIM card's PIN code is disabled before insertion.
- Gently slide open the SIM card cover on the tracker.
- Insert the activated 4G SIM card into the designated slot with the metal contacts facing down.
- Close the SIM card cover securely.

Image 4.1: Steps for SIM card installation.
4.2 Wiring Diagram
Proper wiring is crucial for the tracker's functionality, especially for the remote engine cut-off feature. Consult a professional if you are unsure about the wiring process.
- Red Wire: Connect to the positive (+) terminal of the vehicle's battery.
- Black Wire: Connect to the negative (-) terminal (ground) of the vehicle's battery.
- Orange Wire: Connect to the ACC (Ignition Detect) wire of the vehicle.
- Yellow Wire (Relay Control): Connect to the relay for engine cut-off functionality.

Image 4.2: Wiring diagram for the SinoTrack GPS Tracker and relay.
4.3 Initial Power-Up and Charging
After wiring, connect the tracker to your car's power source and allow it to charge for at least one hour before first use to ensure the internal battery is sufficiently charged.
5. Operating Instructions
5.1 App Download and Login
To access the full features of your SinoTrack GPS Tracker, download the free mobile application or use the web platform.
- Search for "sinotrackpro" on Google Play Store (for Android) or Apple App Store (for iOS) and download the application.
- Open the app and select the server: vipsinotrack.
- Enter your username, which is the ID number located on the device.
- The initial login password is 123456. You may change this after your first login.

Image 5.1: Steps for initial setup, app download, and login.
5.2 Real-time Tracking
The SinoTrack app and web platform provide real-time location updates of your vehicle. The positioning accuracy is up to 10 meters.

Image 5.2: Real-time tracking interface on the mobile application.
5.3 History Route Playback
The system stores up to 2 years of tracking history. You can view and playback past routes to review your vehicle's movements over specific periods.

Image 5.3: History route playback feature.
5.4 Geo-fence
Set up virtual boundaries (geo-fences) on the map. You will receive alerts when the vehicle enters or exits these predefined areas.

Image 5.4: Geo-fence setup on the mobile application.
5.5 Remote Engine Cut-off
In case of theft, you can remotely cut off the engine by sending an SMS command to the tracker's SIM card. The vehicle will stop moving within 10-20 seconds if its speed is below 20 KM/h. The command is 9400000.

Image 5.5: Remote engine cut-off functionality.
6. Maintenance
To ensure the longevity and optimal performance of your SinoTrack GPS Tracker, follow these general maintenance guidelines:
- Keep the device dry and away from extreme temperatures.
- Clean the device with a soft, dry cloth. Avoid using harsh chemicals or solvents.
- Ensure all connections are secure and free from corrosion.
- Regularly check the SIM card's data and SMS balance to ensure continuous operation.
7. Troubleshooting
If you encounter issues with your SinoTrack GPS Tracker, refer to the following troubleshooting steps:
7.1 Device Not Working Normally
- SIM Card Activation: Check that the SIM card is activated according to its instructions.
- SIM Card Presence: Verify that a SIM card is inserted.
- SIM Card Direction: Ensure the SIM card is inserted in the correct direction.
- Battery Level: If the device is out of battery, charge it for one hour before use.
- Network Signal: If the yellow light keeps flashing, indicating no network, move the tracker to another location with better signal.
- APN/IP/Port Settings: Send the SMS command RCONF from your phone to the tracker's SIM to get a reply. Check if APN, IP, and Port settings are correct.
7.2 Sending SMS Command Without Reply
- SMS Origin: Ensure you are sending commands from your phone to the device's SIM card, not directly within the app.
- SIM PIN: Check if the device's SIM card PIN code has been removed.
- SMS Functionality: Verify that the device's SIM card has the function of sending text messages.
7.3 Username and Password Errors When Logging In
- Server Selection: When logging in, select the server: vipsinotrack.
- Initial Password: The initial login password is 123456.
- Username: The username is the ID number printed on the device.
- If you still cannot log in, please contact support.
7.4 Device Offline for a Long Time
- Send the SMS command RCONF from your phone to the tracker's SIM. Check the reply to see if the APN is set incorrectly.
7.5 Device Sometimes Online, Sometimes Offline
- SIM Card: Replace the SIM card with one that has a better signal.
- Location: Drive to a location with good signal reception.
- SMS Location: You can also send an SMS command of 6690000 to the device to obtain SMS location when the device is disconnected.
7.6 Device Not Online
- Check device settings by sending RCONF to the device. The reply will show:
- 1. If the APN is correct.
- 2. If the IP and Port are correct (refer to the user manual for correct IP and Port).
8. Warranty and Support
SinoTrack products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your product or contact SinoTrack customer support.
For technical assistance or further inquiries, please visit the official SinoTrack website or contact their customer service department. Keep your device's ID number handy when seeking support.
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