Troubleshooting for app on the Mi Smart Projector cannot be started, please refer to the following steps:
1. Turning it off for a moment and then back on can fix temporary glitches;
2. Ensure that your projector is properly connected to the internet. Poor network connectivity can prevent apps from starting or functioning properly;
3. Too much app data can cause problems. Go to Settings, Apps, choose the app, and clear its cache and data;
4. Outdated versions of apps may have compatibility issues with the projector's software. Check the app store for any available updates and install them if necessary;
5. Make sure that your projector's operating system is up to date. Check for any available software updates in the settings menu and install them if available;
6. If clearing the cache and data didn't help, consider uninstalling and reinstalling the app. This can help to reset the app to its default settings and resolve any underlying issues;
7. If none of the above steps resolve the issue, you may need to perform a factory reset on your projector. Keep in mind that this will erase all data and settings on the device, so make sure to back up any important information before proceeding;
8. If the issue persists, contact your local after-sales for further assistance regarding this issue.