If your OBDSTAR device – such as the Odomaster, Key Master 5, or P50 – fails to power on, follow this step-by-step troubleshooting guide to resolve the issue.
Step-by-Step Troubleshooting
- Check Power Supply
Connect the original power adapter to the device and allow it to charge for several minutes. Attempt to power it on afterward.
- Inspect the Battery Connection
If the device still does not start:
- Remove the four screws on the back cover using an electric screwdriver or standard screwdriver.
- Carefully open the cover and disconnect the battery cable.
- Reconnect the power adapter and check if the device powers on.

- Contact Support
If the issue persists, the device may require professional inspection. Reach out to OBDSTAR Technical Support for further assistance.
Technical Support
Email: sales@obdstartools.eu
WhatsApp/Mobile/Wechat: +86 15972933706
Skype: OBDStarTools.eu