This guide explains the root cause of the "License check failed (1006)" or "License check failed (TimeStampError)" pop-up message during Smart Launcher authentication or software update on GDS Smart / KDS 2.0 / GENESIS Smart, and provides step-by-step instructions to resolve it via Automatic Date & Time settings and network verification.
Applicable Products & Environment
- Hyundai: GDS Smart / GDS Smart RND
- Kia: KDS 2.0
- Genesis: GENESIS Smart
- Related Component: Smart Launcher (Installation & Update License Authentication)
On this page
1. Symptoms: Smart Launcher "License check failed (1006 / TimeStampError)"
- Authentication Blocked in Smart Launcher: When installing, updating, or authenticating your license key in Smart Launcher, an error pop-up appears displaying "License check failed. (1006)" or "License check failed. (TimeStampError)".
- Installation Cannot Proceed: Even if the installation package download completes, the authentication step fails and prevents the update or installation from finishing.
2. Root Cause & Diagnostic Criteria
Key Root Cause Summary: Error code 1006 (TimeStampError) is NOT caused by a defective license key or a software/server defect. It occurs when the tablet's Date & Time is out of sync with the authentication server (exceeding the ±2-minute tolerance) or when a workshop firewall blocks connection to the authentication server.
- Tablet Date & Time Synchronization Mismatch (Primary Cause): Smart Launcher validates license authentication requests against the server's UTC timestamp. The maximum allowed clock difference is ±2 minutes. If Automatic date and time is turned off on the tablet and the device clock drifts by 2 minutes or more from the server time, authentication fails with error 1006 or TimeStampError.
- Not a License Key Defect: As long as the license key is entered without typos, enabling Automatic Date & Time allows the exact same license key to authenticate normally.
- Workshop Network / Firewall Restrictions: If a corporate or dealership Wi-Fi firewall blocks external authentication servers, license verification may also fail with error 1006.
| Diagnostic Factor | Applicable Cause? | Notes |
|---|---|---|
| Tablet Date & Time Configuration Error | Yes (Primary Cause) | Fails when tablet clock differs from server time by more than ±2 minutes |
| Workshop Network / Firewall Block | Yes (Secondary Cause) | Occurs when restricted Wi-Fi blocks authentication server access |
| Defective License Key / App Defect | No | The same license key succeeds once time synchronization is restored |
3. Step-by-Step Resolution (Automatic Date & Time · Mobile Hotspot)
Step A: Enable Automatic Date & Time and Automatic Time Zone in Tablet Settings
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Open Tablet Settings: Go to Settings on your Android tablet.
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Open General Management: Scroll down and tap General management.
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Select Date and Time: Tap the Date and time menu.
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Enable Automatic Date and Time: Turn ON both Automatic date and time and Automatic time zone.
Step B: Connect to a Mobile Hotspot and Retry Authentication
- Switch to Mobile Hotspot (If Workshop Wi-Fi Is Restricted): If the error persists after enabling Automatic Date & Time, connect the tablet to a smartphone mobile hotspot (tethering) or an unrestricted Wi-Fi network to bypass firewall blocks.
- Verify License Key & Relaunch Smart Launcher: Close Smart Launcher completely, relaunch it, verify that there are no typos in the license key, and proceed with authentication again.
Verification: Once Automatic Date & Time and network connectivity are properly configured, license verification completes immediately with the same license key, allowing software installation and updates to proceed normally.
4. Related Help Center Guides
- Troubleshooting: Error Code 100 (TimeStamp & Security Certificate Download Error) After Login on GDS Smart / KDS 2.0 / GENESIS Smart — Resolving TimeStamp errors (Code 100) during background security certificate download after login
- How to Deal with KNOX Authentication Error During Smart Launcher Installation — Troubleshooting Samsung KNOX server connection errors during Smart Launcher setup
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