[Notice] From 20 August 2026, Diagnostic Number (VDN) Will No Longer Be Transmitted from GDS Mobile / GENESIS Mobile (Android OS 4.4 or Below) to e-Report / GWMS

Dear Customer,

This notice is a follow-up to the previously announced security upgrade of the diagnostic service servers. Please read the details below and complete the required actions before the effective date.

▶ Previous notice: Notice for Customers Using GDS/GENESIS Mobile Android OS 4.4 or Below — Server TLS 1.2 Implementation Scheduled

1. What Is Changing

From 20 August 2026, the diagnostic number (VDN) created during vehicle diagnosis on GDS Mobile or GENESIS Mobile running Android OS 4.4 or below will no longer be delivered to the following systems:

• e-Report — diagnostic report transmission
• GWMS — warranty/work management data linkage

As a result, diagnostic results performed on affected devices will not be registered in e-Report or GWMS, and any downstream task that depends on the VDN cannot be completed.

2. Why This Change Is Being Made

To comply with security standards and strengthen data protection, the communication protocol of the diagnostic service servers has been upgraded to TLS 1.2.

Android OS 4.4 or below does not support TLS 1.2. Once the requirement is enforced on the e-Report and GWMS linkage, devices running OS 4.4 or below can no longer establish a secure connection to those servers, so VDN transmission fails. This is a security requirement and cannot be bypassed by a GDS Mobile update or a setting change on the device.

3. Expected Impact

3-1. Direct impact from 20 August 2026

• The diagnostic number (VDN) is not transmitted to e-Report from GDS Mobile / GENESIS Mobile on Android 4.4 or below.
• The diagnostic number (VDN) is not transmitted to GWMS from GDS Mobile / GENESIS Mobile on Android 4.4 or below.
• Work that requires the VDN to be registered in e-Report or GWMS cannot be completed on affected devices.

3-2. Related restrictions previously announced

• Functions that require server communication or a network connection may become unusable or may return errors.
• Even if the diagnostic app launches, failures may occur during server-related procedures (authentication / download / update verification), making normal use difficult.

4. Required Actions

Step 1. Check the Android OS version of each tablet

Confirm whether each tablet in operation is running Android OS 4.4 or below.

1. On the tablet, go to Settings → About tablet → Check Android version.
2. If it shows Android 4.4 or below, proceed with the measures below.

Step 2. Transition to GDS Smart

By moving to the GDS Smart platform, you ensure compatibility with the latest OS and security protocols, enabling stable and reliable service including e-Report and GWMS linkage.

▶ GDS Mobile update service termination

Step 3. OS upgrade or device replacement

If transitioning to GDS Smart is not immediately possible, please update to Android 8.0 or above where the device allows. For devices that cannot be upgraded due to manufacturer policy or hardware limitations, replacement with a device supporting a higher OS version, or transition to new equipment, is advised.

▶ Tablet PC specification for GDS Smart, GENESIS Smart, KDS 2.0 Including Noise Inspection

Step 4. Prepare your workshop before the effective date

• Download essential resources and updates in advance.
• Back up locally any materials required for on-site work.
• Secure alternative equipment so that diagnosis and reporting are not interrupted.

5. Schedule

Any further changes to this schedule will be announced separately through this Help Center.

6. FAQ

Q1. What exactly stops working on 20 August 2026?

A. The diagnostic number (VDN) produced by GDS Mobile / GENESIS Mobile on Android OS 4.4 or below will not be transmitted to e-Report or GWMS. Diagnostic results carried out on affected devices will therefore not be registered in those systems.

Q2. Why is TLS 1.2 required?

A. To comply with security standards and strengthen data protection, the communication protocol of the servers has been upgraded. Applying the latest standard improves network security and stability.

Q3. My device is on Android 4.4. Can this be fixed without replacing the tablet?

A. If the device can be upgraded to Android 8.0 or above, that resolves the issue. However, some devices have upgrade restrictions due to manufacturer policies or hardware limitations. If an upgrade is not possible, replacing the device or transitioning to GDS Smart on a supported device is required.

Q4. I am using GENESIS Mobile, not GDS Mobile. Does this apply to me?

A. Yes. Both GDS Mobile and GENESIS Mobile running on Android OS 4.4 or below are subject to this restriction.

Q5. Is GDS Smart affected?

A. No. This notice applies to GDS Mobile / GENESIS Mobile on Android OS 4.4 or below only. GDS Smart supports the required security protocol and continues to transmit to e-Report and GWMS normally.

Q6. What must be done during on-site operations?

A. Before the effective date, please download essential resources and updates in advance, locally back up materials needed for work, and secure alternative equipment.

Q7. What about additional costs or support?

A. Equipment replacement / transition and support policies may vary by corporation and region. Please contact your regional representative or the Quality Service team for detailed guidance.

7. Related Notices and Guides

• Notice for Customers Using GDS/GENESIS Mobile Android OS 4.4 or Below — Server TLS 1.2 Implementation Scheduled
• GDS Mobile update service termination
• Tablet PC specification for GDS Smart, GENESIS Smart, KDS 2.0 Including Noise Inspection

8. Contact

We kindly ask for your cooperation in completing the transition before 20 August 2026 so that your diagnostic and reporting operations are not interrupted. Thank you for your understanding.

Thank you.

Quality Service Team, GIT