Keep VCI3 Connected to Update Important Status Information and Complete the Login

This article explains how to resolve the notice asking you to keep VCI3 (VCI III) connected to update important status information and complete the login on KDS 2.0.

Symptoms

When starting vehicle diagnosis or entering functions that initiate vehicle communication with VCI3 (VCI III) on KDS 2.0, the following notice pop-up appears:

Cause

This notice appears when important status parameters and security certificates (HSM certificates) between the tablet and VCI3 (VCI III) have not been synchronized with the server during login. If you do not complete the re-login and wired synchronization procedure, this notice will reappear whenever you enter functions that require VCI3-to-vehicle communication:

• Smart Diagnosis (Fault Code Searching)
• S/W Management
• ECU Upgrade
• Vehicle communication menus: Any other menu that initiates communication between VCI3 (VCI III) and the vehicle.

How to Resolve (Step-by-Step)

1. Log out of the diagnostic app (KDS 2.0) and completely close the application.
2. Reboot the tablet PC.
3. Run the diagnostic app again.
   (Ensure VCI3 (VCI III) is NOT plugged into the vehicle at this point.)
4. Activate Log Collection in case the issue persists.
   
   • How to send the error log report on KDS 2.0
5. Log in with your credentials while connected to a stable network (Wi-Fi, LTE, or 5G) and wait for 2 to 3 minutes for background status and certificate synchronization.
6. Connect the tablet PC and VCI3 (VCI III) via USB using the dedicated cable included in the product package.
   See Cable Requirements below.
7. Plug VCI3 (VCI III) into the vehicle OBD port.
8. Wait for 2 to 3 minutes so that the important status information and security certificate are updated on VCI3.
9. Run FCS¹ with several ECUs to verify vehicle communication.
10. Retry the diagnostic function or ECU Upgrade. If the same notice continues to appear, submit the collected error log.

Cable Requirements

If the Issue Persists & Related Guides

If the notice keeps appearing after following the steps above, please submit the error log to the GIT server or refer to the related HSM certificate troubleshooting guide below:

• How to send the error log report on KDS 2.0
• Troubleshooting: HSM Certificate Error During ECU Upgrade (KDS 2.0)

1. FCS: Fault Code Searching — diagnostic function used to read fault codes from vehicle ECUs. Back

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