Unable to send SMS using SmsManager in Android 13

Are you facing issues with sending SMS using SmsManager in Android 13? Don't worry, you're not alone. Many users have reported similar problems, and we're here to help you troubleshoot this issue. In this article, we will discuss some common reasons why you may be unable to send SMS using SmsManager in Android 13 and provide step-by-step solutions to resolve the problem.

1. Check Permissions

The first thing you should do is check if your app has the necessary permissions to send SMS. Android 13 introduced some changes to permissions, so it's essential to ensure that your app has the required permissions.

To check the permissions, follow these steps:

1. Open the Settings app on your Android device.
2. Scroll down and tap on "Apps & notifications."
3. Find and tap on your messaging app.
4. Tap on "Permissions."
5. Make sure that the "SMS" permission is granted. If not, enable it.

Once you have granted the necessary permissions, try sending an SMS again to see if the issue is resolved.

2. Check Default SMS App

Android 13 introduced a new feature called the Default SMS app. This means that only the app set as the default SMS app can send SMS messages. If your messaging app is not set as the default SMS app, you won't be able to send SMS messages using SmsManager.

To check and set your messaging app as the default SMS app, follow these steps:

1. Open the Settings app on your Android device.
2. Scroll down and tap on "Apps & notifications."
3. Tap on "Default apps."
4. Tap on "SMS app."
5. Select your messaging app from the list.

Make sure your messaging app is set as the default SMS app. If not, set it as the default and try sending an SMS again.

3. Check SMS Center Number

The SMS Center Number is a crucial setting that determines the routing of your SMS messages. If the SMS Center Number is incorrect or missing, you won't be able to send SMS messages using SmsManager.

To check and set the SMS Center Number, follow these steps:

1. Open your messaging app.
2. Tap on the three-dot menu icon or the settings icon (depending on your app).
3. Tap on "Settings."
4. Look for an option related to the SMS Center Number or SMSC.
5. If the SMS Center Number is incorrect or missing, contact your mobile network operator to obtain the correct SMS Center Number.
6. Enter the correct SMS Center Number and save the settings.

Once you have set the correct SMS Center Number, try sending an SMS again to see if the issue is resolved.

4. Check Network Connection

Another reason why you may be unable to send SMS using SmsManager in Android 13 is a poor network connection. Ensure that you have a stable network connection, either through Wi-Fi or mobile data.

You can try the following steps to troubleshoot network connection issues:

1. Turn off Wi-Fi and enable mobile data (or vice versa) to switch between different network connections.
2. Restart your device to refresh the network settings.
3. If you are using mobile data, ensure that you have sufficient signal strength.
4. Try sending an SMS in a different location to rule out any location-specific network issues.

If the network connection was the problem, establishing a stable connection should resolve the issue. Try sending an SMS again to confirm.

5. Update Your App and Android Version

Software updates often include bug fixes and improvements that can resolve issues with sending SMS using SmsManager. Ensure that your messaging app and Android operating system are up to date.

To update your app and Android version, follow these steps:

1. Open the Google Play Store app on your Android device.
2. Tap on the three-line menu icon.
3. Tap on "My apps & games."
4. Under the "Updates" tab, look for your messaging app.
5. If an update is available, tap on "Update" next to the app.
6. To update your Android version, go to "Settings" > "System" > "Advanced" > "System update."
7. If an update is available, follow the on-screen instructions to update your Android version.

After updating your app and Android version, try sending an SMS again to see if the issue is resolved.

We hope that one of the solutions mentioned above helped you resolve the issue with sending SMS using SmsManager in Android 13. If none of the solutions worked, you may consider reaching out to the developer of your messaging app or seeking further assistance from Android support.

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