If your O-KAM Pro app firmware update caused issues with the S9+ camera sleep mode not working, there are two separate areas to troubleshoot: the O-KAM Pro camera/app and your Samsung S9+ device.

1. O-KAM Pro Camera/App Troubleshooting

- Firmware and App Updates: Make sure both your O-KAM camera firmware and the O-KAM Pro app are fully updated. For Android, open the app, go to Mine > About > Check for updates, and upgrade if a new version is available. After updating, log out and back in to the app to ensure changes take effect147.
- Sleep Mode Not Working: The official O-KAM Pro troubleshooting guides and FAQs do not specifically mention a "sleep mode" problem, but they advise restarting the device if features (like camera control or settings) stop working after an update6. Try restarting your camera (through the app or by manually unplugging and replugging it), then check sleep mode functionality again.
- General Camera Issues: If the camera or its features (including sleep mode or motion detection) do not function after a firmware update, look for firmware-specific information from the O-KAM Pro support resources or contact their after-sales support for firmware rollback or patch guidance7.

2. Samsung Galaxy S9+ Troubleshooting

If your issue is with the S9+ camera app "sleep mode" (or a related system sleep/wake function):

- Camera App Issues: Problems after updates can sometimes be resolved by force-stopping the camera app, clearing its cache, or resetting camera settings:
- Go to Settings > Apps > Camera > Force Stop, then clear the cache.
- In Camera settings, scroll down to reset settings25.
- Sleep Mode in Modes and Routines: If the phone’s sleep mode is not deactivating as expected after an app update, clear the cache of the Modes and Routines app, reboot the phone, and reconfigure your sleep schedule8.

If the sleep mode issue is limited to inside the O-KAM Pro app (e.g., camera doesn’t enter sleep/standby), this is likely a firmware or compatibility bug introduced in the latest update. Restart the camera and app as above; if the issue persists, contact O-KAM Pro support directly for guidance on firmware issues and reporting bugs7.

If the phone’s sleep mode itself is malfunctioning after the O-KAM Pro app or firmware update, it is likely a coincidence or a software conflict. Apply Samsung’s general troubleshooting: clear app caches, reboot, and recheck sleep settings8.

Summary of Steps to Try:

- Ensure both app and firmware are fully updated147.
- Restart both the O-KAM camera and the app6.
- Reset S9+ camera settings and clear app caches if the phone camera is affected258.
- If the problem is within the O-KAM Pro camera, contact their support for firmware rollback or update information7.
- If the problem is with the S9+ device’s sleep mode, treat it as a Samsung system issue and follow Samsung’s troubleshooting steps8.

If these steps do not resolve your issue, you may need to wait for a future firmware fix or contact both O-KAM Pro and Samsung support to escalate the problem.