Fixing PUSH notifications on Huawei devices (Android)
If you can't receive notifications for new messages or calls while app running in the background, or after the phone screen has been turned off for a while, refer to the following for troubleshooting.
If you cannot receive messages after powering on or restarting your phone, this is normal. This is because the app has not started after the phone was restarted. Touch the app icon to start the app and receive messages.
1. Check for updates
Go to Google Play Store to update the app to the latest version.
Check for updates for your phone:
Open Settings, search for and access Software update or System update, and touch Check for updates. If a version is available, update your phone at your earliest convenience.
2. Enable app notifications
Enable the notification permission
Go to Settings → Notifications → Ringotel, enable Allow notifications, and enable Allow notifications, Display in status bar, Banners, and Lock screen notifications as required.
Please note, Ringotel will not immediately push messages to the registered mobile devices if you have logged in to the PC-based version of the app.
3. Check the network connection
Disable Data saver.
You will not be able to receive notifications from an app if the network connection permission of the app is disabled, or you have enabled Data saver for the app.
Navigate to Settings → Mobile network → Data usage → Network access, find Ringotel, and enable both (or at least one, depending on network type usage) Mobile data and Wi-Fi.
Navigate to Settings → Mobile network → Data usage → Data saver (Smart data saver), and disable Data saver (Smart data saver). Alternatively, you can keep Data saver (Smart data saver) enabled, locate the Ringotel app in the EXEMPTIONS list, and turn on the switch next to it.
Enable Wi-Fi/Mobile data switch and Stay connected when device sleeps.
It may be because no Wi-Fi connection is available and your phone has not automatically switched to the mobile data network, or your phone has disconnected from the network during sleep.
Enable Stay connected when device sleeps.
Navigate to Settings → Battery → More battery settings, search for and enable Stay connected when device sleeps feature.
4. Enable the permission for the app to run in the background
If an app is forbidden from running in the background or cleared from the background, there will be no notifications from this app.
Navigate to Settings → Battery → App launch, find Ringotel, and switch from manage automatically to switch manualy by tapping on switch next to the app. Leave the Auto-launch, Secondary launch, Run in background enabled.
5. Update the rules in Phone Manager
Enable Smart tune-up in Phone Manager, and clear data of Phone Manager by performing the following:
Open Phone Manager, touch  in the upper right corner, and enable Smart tune-up.
Open Settings and search for Apps. Locate and touch Phone Manager, then go to Storage > CLEAR DATA. Ensure your phone is connected to the network, then open Phone Manager. Wait until Phone Manager displays a score on its screen and restart your phone.
The preceding operation will restore all the other settings for Phone Manager. It is advised that you configure the settings again afterwards.
6. Uninstall and re-install the app
Uninstall any third-party phone managers.
Third-party management apps may manage your apps according to their own rules. Check whether a third-party phone manager app is installed on your phone. If so, uninstall it or add the app to the list of trusted apps in the third-party phone manager app.
Uninstall the app and install it again.
Back up the data of the app and then uninstall it. Reinstall it from Google Play Store or the app's official website and grant it with all necessary permissions.
7. Issue unresolved?
If the issue persists, please contact Ringotel Support for further assistance at support@ringotel.co.