A. 1. Ensure that you are using the latest version of the EcoNet app. Update it through the App Store if necessary. 2. After setting a schedule, make sure to tap 'Save' or 'Confirm' before exiting the scheduling screen. 3. Check your phone's storage; if it's low, it may affect app performance. Clear some space if needed. 4. Restart the app after saving the schedule to see if it retains the changes.

B. 5. If the problem continues, try uninstalling and reinstalling the app to reset its settings.