Resolving the “Please Login First!” Upgrade Error on OBDSTAR P50 & DC706 Diagnostic Tools: Users of the OBDSTAR P50 and DC706 ECU Tool may encounter a “Please login first!” message when attempting a one-click software upgrade. This error halts the update process, potentially affecting device performance and access to new features.

Root Cause
The error typically arises from an inactive or expired user authentication session. The upgrade function requires valid, active login credentials to verify user authorization before proceeding.
Step-by-Step Resolution
- Re-authenticate Your Account
Launch the OBDSTAR application and access the “Personal Center.” Log in again using your registered username and password. Confirm that your account is in good standing.
- Re-initiate the Upgrade
Once successfully logged in, navigate back to the “One-Click Upgrade” menu. Proceed to download and install the latest available software version for your device.
- Verify Account Status
If the problem continues, check your account status on the official OBDSTAR website. Inactive or unverified accounts may require reactivation through the vendor or official support channels.
Proactive Recommendations
- Maintain a stable internet connection throughout the login and upgrade process to prevent session timeouts.
- If login difficulties persist, try clearing the application’s cache from the device settings menu.
For additional support, consult your tool supplier or visit the official OBDSTAR resource pages. Keeping your diagnostic tool software up-to-date is crucial for optimal functionality and vehicle coverage.
Technical Support
Email: sales@obdstartools.eu
WhatsApp/Mobile/Wechat: +86 15972933706
Skype: OBDStarTools.eu