1. Introduction
The KINGBOLEN K7 is a professional-grade bidirectional full system car diagnostic scanner designed for comprehensive vehicle diagnostics and maintenance. This device offers OE-level functionality, including ECU coding, active tests, and over 28 reset services, with lifetime free software updates. It supports a wide range of vehicle makes and models, providing an efficient solution for both professional mechanics and DIY enthusiasts.

Figure 1: KINGBOLEN K7 Diagnostic Scanner with key features.
2. Setup Guide
2.1. Package Contents
Before starting, ensure all items are present in your KINGBOLEN K7 package:
- 1 x 7-inch KINGBOLEN K7 Tablet
- 1 x Bluetooth VCI Dongle
- 1 x Handbag (black EVA Storage Bag)
- 1 x Multilingual Quick Start Manual
- 1 x Carton Box
- 1 x USB Cable
- 3 x Chargers (US / UK / EU convertible plugs)

Figure 2: Contents of the KINGBOLEN K7 package.
2.2. Initial Power On and Charging
- Connect the provided USB cable to the KINGBOLEN K7 tablet and the charging adapter.
- Plug the charging adapter into a suitable power outlet.
- The device will power on automatically or can be powered on by pressing the power button.
- Ensure the device is fully charged before first use for optimal performance.
2.3. Wireless Connection (Bluetooth VCI)
The KINGBOLEN K7 utilizes a Bluetooth VCI (Vehicle Communication Interface) dongle for wireless communication with your vehicle. This allows for diagnostics up to 33ft (10m) away from the vehicle.
- Locate your vehicle's OBD-II port (usually under the dashboard).
- Plug the Bluetooth VCI dongle firmly into the OBD-II port.
- On the K7 tablet, navigate to the 'Settings' menu.
- Ensure Bluetooth is enabled and select the VCI dongle from the list of available devices to pair.
- Once paired, the device is ready for wireless diagnostics.

Figure 3: Wireless diagnostic capability of KINGBOLEN K7.
2.4. Software Update
The KINGBOLEN K7 comes with lifetime free software updates. It is crucial to keep your software updated to ensure compatibility with the latest vehicle models and access to new features.
- Connect the K7 tablet to a stable Wi-Fi network.
- From the main menu, tap on the 'Update' icon.
- The system will check for available updates.
- Select 'Start all' or choose specific software packages to update.
- Allow the updates to download and install completely. Do not interrupt the process.
Video 1: Overview of K7 OBD2 Diagnostic Tool features, including software updates.
Figure 4: Screenshot from video showing the update process.

Figure 5: Lifetime Free Software Updates feature.
3. Operating Instructions
3.1. Main Interface Navigation
The KINGBOLEN K7 features an intuitive Android 10 interface. The main screen provides quick access to key functions:
- Store: Access additional applications or services.
- OBD: Standard OBD2/EOBD2 diagnostic functions.
- Scan: Initiate a full system scan or auto-search for vehicle information.
- Reset: Access various reset and special functions.
- Repair Info: Access repair information, DTC lookup, and coverage lists.
- Update: Manage software updates.
- Module: Access extended module functions (if purchased).
- File: Manage diagnostic reports and other files.
- Settings: Configure device settings, including language, Wi-Fi, and screen recorder.
3.2. Auto VIN and Vehicle Selection
The K7 supports automatic VIN identification for most vehicles (1996 and newer). This streamlines the diagnostic process by automatically detecting your vehicle's make, model, and year.
- From the main menu, tap 'Scan'.
- Select 'AUTOSEARCH' or 'VIN SCAN'.
- The device will attempt to automatically identify the vehicle.
- If Auto VIN fails or is not supported, you can manually select the vehicle make, model, and year.
3.3. Full System Diagnostic
The K7 performs OE-level diagnostics across all available vehicle systems.
- After vehicle identification, select 'Scan' from the main menu.
- Choose 'System Scan' to perform a comprehensive scan of all electronic control units (ECUs).
- The device will display a list of detected systems and any associated Diagnostic Trouble Codes (DTCs).
- You can then select specific systems to view live data, read/clear DTCs, or perform other functions.

Figure 6: Overview of full system diagnostic capabilities.
3.4. Live Data Stream
Monitor real-time data from various sensors and components in text, graph, or combined (up to 4 streams) formats.
- From a selected system's diagnostic menu, choose 'Read Data Stream'.
- Select the parameters you wish to monitor.
- View the data in numerical or graphical format. The 4-in-1 graph allows for visual comparison of multiple data streams.

Figure 7: Live Data Stream display on K7, showing 4-in-1 graph visualization.
3.5. Bidirectional Control / Active Test
This function allows you to send commands to vehicle ECUs to test actuators and pinpoint problematic components without disassembling the vehicle.
- From a selected system's diagnostic menu, choose 'Actuation Test' or 'Bidirectional Control'.
- Select the component you wish to test (e.g., A/C Clutch, Fuel Injectors, Wipers, Windows, Lights).
- Follow the on-screen prompts to activate and observe the component's response.

Figure 8: Examples of Bi-Directional Control / Active Tests.
3.6. ECU Coding
ECU Coding allows for customization, unlocking hidden features, disabling annoying functions, and matching newly replaced ECUs.
- From the diagnostic menu, select 'ECU Coding'.
- Follow the on-screen instructions carefully. Incorrect coding can lead to vehicle malfunctions.
- Examples include disabling seat belt buzzers, auto engine start-stop, or customizing lighting functions.

Figure 9: Professional ECU Coding capabilities.
3.7. Special Functions / Reset Services
The K7 offers over 28 common reset and special functions for various maintenance tasks.
- From the main menu, tap 'Reset'.
- Select the desired service (e.g., Oil Reset, EPB Reset, SAS Reset, BMS Reset, ABS Bleeding, Injector Coding, DPF Regeneration, IMMO Service, TPMS Reset, ODO Reset).
- Follow the on-screen instructions to perform the service.

Figure 10: Overview of 31+ Common Used Reset Services.
3.8. IMMO Key Programming
The K7 supports IMMO (Immobilizer) key programming for certain low-grade IMMO vehicles, primarily Asian brands.
- Add new keys.
- Rewrite smart keys.
- Handle situations where all smart keys are lost.
Note: This function is not compatible with advanced IMMO systems found in brands like Audi, Benz, BMW, or VW. Always verify compatibility with the seller for your specific vehicle.

Figure 11: IMMO/KEY Matching features.
3.9. OBD2/EOBD2 Functions
Access standard OBD2/EOBD2 diagnostic functions for engine-related issues.
- Reading Codes: Display detailed Diagnostic Trouble Codes (DTCs).
- Erasing Codes & Reset: Turn off Check Engine Light (MIL), clear codes, and reset monitors.
- Data Stream: Read and display live ECU/PCM data.
- I/M Readiness Status: Check emissions-related system readiness.
- View Freeze Frame Data: See vehicle conditions at the time of a fault.
- O2 Sensor Test: Retrieve O2 sensor monitor test results.
- On-Board Monitor Test: Display test results for emission-related powertrain components.
- Read Vehicle Information: Display VIN, CID, and CVN.
- Component Test: Actuate certain vehicle components for operability testing.
3.10. CAN-FD Protocol Support
The 2026 new version of KINGBOLEN K7 supports the CAN-FD protocol, enabling faster diagnostics and compatibility with newer vehicles, including many GM models manufactured after 2020.
- GM Vehicles (2020+): Chevrolet Onix, Tracker, Suburban, Tahoe; Buick; Cadillac Escalade; GMC Yukon, Yukon XL.
- Other brands like Holden, DAEWOO, Alpheon, Ravon, Pontiac, Saturn, Hummer.
Note: Compatibility varies. Contact the seller to confirm support for your specific vehicle.

Figure 12: CAN-FD Protocol compatibility for various GM models.
3.11. FCA AutoAuth Access
The K7 supports FCA AutoAuth for Chrysler, Dodge, Fiat, etc., vehicles manufactured after 2017, allowing access to protected SGW (Security Gateway) modules.
- An AutoAuth account needs to be purchased separately (charged by FCA company).
- After purchasing, log in to the FCA official website to bind your K7 device.
- In the FCA website, navigate to: Add Tool → Pick the Type of Tool → THINKCAR → THINKTOOL Others.
- Once bound, you can proceed directly to diagnosis on the K7 device.

Figure 13: FCA SGW Gateway AutoAuth process steps.
3.12. Multi-language Support
The device supports 17 languages, which can be switched in the settings menu.
- English, French, Spanish, German, Russian, Korean, Japanese, Portuguese, Italian, Polish, Hungarian, Persian, Dutch, Greek, Slovak, Swedish, Traditional Chinese.

Figure 14: K7 supports 17 languages for global use.
3.13. Diagnostic Report Generation and Sharing
After completing a diagnostic session, the K7 can generate a detailed report.
- After a scan, select 'Report' or 'PDF' to generate a diagnostic report.
- The report can be saved to the device's internal storage.
- Reports can be shared via Bluetooth or email directly from the device.
3.14. Built-in Browser / DTC Lookup
The K7 includes a built-in Google Chrome browser and a DTC Lookup Library for quick troubleshooting and information retrieval.
- Access the 'Repair Info' menu.
- Use the 'OBD Fault Code Library' to look up DTCs.
- If more information is needed, use the 'Chrome' browser to search online.
3.15. Remote Technical Support (TeamViewer QuickSupport)
For advanced assistance, the K7 integrates TeamViewer QuickSupport.
- Navigate to 'Settings' and find 'Remote Controller'.
- Open 'TeamViewer QuickSupport'.
- Provide your ID to a support technician for remote assistance.
4. Maintenance
4.1. Software Updates
Regular software updates are essential for maintaining optimal performance and compatibility. Connect to Wi-Fi and check for updates frequently via the 'Update' icon on the main screen.
4.2. Battery Care
The K7 is equipped with a 3.8V/3150mAh battery. To prolong battery life:
- Avoid extreme temperatures.
- Charge the device regularly, do not let it fully discharge for extended periods.
- Use only the provided charging adapter and cable.
4.3. Cleaning
Clean the device with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the screen or casing.
5. Troubleshooting
5.1. Common Issues
- Device not powering on: Ensure the battery is charged. Connect to the charger and try again.
- Bluetooth VCI not connecting: Ensure the VCI dongle is securely plugged into the OBD-II port and Bluetooth is enabled on the tablet. Try re-pairing the devices.
- Software update failure: Check your Wi-Fi connection stability. Ensure sufficient storage space on the device.
- Diagnostic function not working for a specific vehicle: Verify vehicle compatibility for the specific function. Ensure the vehicle's ignition is on.
5.2. Diagnostic Feedback
If you encounter persistent issues or specific diagnostic problems, utilize the 'Feedback' function on the device.
- From the main menu, tap 'Settings' and then 'Feedback'.
- Select the relevant feedback log and describe the problem.
- Submit the feedback for technical support.
5.3. DTC Lookup
For understanding diagnostic trouble codes, use the built-in DTC Lookup Library or the Google Chrome browser for online searches.
6. Specifications
| Feature | Specification |
|---|---|
| Model Name | KINGBOLEN K7 |
| Item Type | Engine Analyzer |
| Tablet Size | 7 inches, 1280 * 720 resolution |
| System Version | Android 10 |
| CPU Version | MT6761 4-core Cortex-A53 main frequency 1.8GHz |
| Running Memory (RAM) | 2GB |
| Storage Memory (ROM) | 32GB (system displays 32GB) |
| Battery Capacity | 3.8V/3150mAh |
| Camera | Rear 1300W |
| WiFi Network | 2.4GHz, 5.0GHz dual frequency |
| Charging Power | 5.0V --2.5A 12.5W |
| Special Features | Bluetooth, Wifi |
| Software Update | Lifetime Free Update |
| External Testing Certification | CE |
| Certification | RoHS, CE |
| Item Weight | 1.6kg |
| Item Height | 18.9cm |
| Item Width | 10.6cm |
| Item Length | 27.5inch |
| Packaging Size | 275mm x 106mm x 189mm |
| Product Gross Weight | 1.6 KG |
7. User Tips
- Odometer Adjustment: Some users inquire about odometer adjustment. Please note that specific functions like odometer adjustment may vary by vehicle and region. Always consult the vehicle's manual or a qualified technician for such sensitive operations.
- Accessories: If you need replacement accessories like the USB charging cable or Bluetooth connector, contact KINGBOLEN customer support.
- Language Support: The device supports 17 languages. Ensure you select your preferred language in the settings for optimal usability.
8. Warranty and Support
8.1. Warranty Information
The KINGBOLEN K7 comes with a 2-year warranty from KINGBOLEN TECH. This covers the main device and its accessories, such as the screen, Bluetooth connector, and USB charging cable, for problems arising within five years of purchase.
8.2. Technical Support
KINGBOLEN provides lifetime free technical support for the K7 diagnostic scanner. For any technical inquiries or assistance, please contact KINGBOLEN customer support. You can also use the built-in 'Feedback' feature on the device or the 'TeamViewer QuickSupport' for remote assistance.





