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When unable to connect to Wi-Fi or 3G/4G networks, text messages are the fastest and most economical means of communication for Android phone users. If you cannot send text messages on your Android phone, it may be due to message access restrictions or operating system errors. To quickly resolve this issue, you can refer to the following ways to fix the problem of not being able to send text messages on Android phones.
Fixing SMS Sending Error on Android and Troubleshooting Methods
1. Causes of Text Message Sending Error on Android
To send text messages, your Android phone needs to ensure 3 factors: device, messaging app, and mobile network are functioning properly. If there's an issue with any of these components, it could be why you can't send messages. Potential causes include:
- No phone signal.
- Incorrect settings.
- Mobile network unable to send or receive messages.
- Recipient's number may be invalid or disconnected.
- Airplane mode activated on the device.
- SIM card improperly inserted.
- Messaging app may have glitches or malfunctions.
- Invalid message center settings (SMSC).
2. Methods to Fix Text Message Sending Error on Android Phones
Based on the above reasons, you can easily check your phone to determine the cause of the message sending error. Additionally, you can refer to the following methods to quickly troubleshoot text message sending errors on Android phones.
2.1. Check Blocked Numbers
If you're unable to send text messages to a specific person on your Android device, their number may be blocked. To check, follow these steps:
Step 1: Open the dialer app and tap on the three-dot icon at the top left of the screen.
Step 2: In the pop-up menu, tap on Settings => Call Blocking to display a list of all blocked numbers on your phone. To unblock a number, simply tap on the minus icon next to that phone number.
2.2. Clear the Message App Cache
If you've tried checking blocked numbers but still encounter issues with sending SMS messages on Android, try clearing the cache of the messaging app. This action will delete all data of the app and may resolve this issue.
Step 1: Open the Settings app and select Apps => Messages
Step 2: In the Messages menu, tap on Storage => Clear Cache.
Cache is simply a temporary storage area for frequently accessed data. Therefore, clearing the cache will not affect any of your messages or other important data.
2.3. Reset SMS Settings to Default
You may encounter sending issues because default SMS settings on Android have been altered when you switch SIM cards. Hence, resetting SMS settings to default can quickly fix sending errors on Android phones.
Step 1: Open the Messages app on your phone and tap on the three-dot icon in the corner, then select Settings.
Step 2: Reset all options to default, restart your phone, and try sending the text message again.
2.4. Reset Network Settings to Default
Since SMS messages operate directly through your service provider's network rather than mobile data, resetting network settings can resolve any issues causing your messaging app to not work. To reset network settings to default, you can do the following:
Step 1: In the Settings app, tap on System => Reset Options.
Step 2: Select Reset Wi-Fi, Mobile & Bluetooth and press the Reset Settings button to reset your phone's network.
2.5. Check Account Balance and SIM on Android Phone
If your SIM card account is expired or out of balance, you won't be able to send text messages. To resolve this issue, check your account balance and top up if it's at zero. To check your account balance, dial the code: *101# and press OK or the call button.
Currently, Zalo is a popular messaging and calling app among many people in Vietnam. However, some users encounter the issue of not being able to send messages on Zalo without knowing the cause or how to fix it. If you're facing a similar situation, refer to the fix for not sending messages on Zalo to resolve your issue.
Here, Mytour has introduced various ways to fix not sending messages on Android phones with detailed steps. Hopefully, it has helped you understand why SMS messages can't be sent on Samsung, Oppo, Xiaomi, etc., and how to quickly fix the issue. If you have any questions, feel free to leave a comment below for assistance.
If you accidentally deleted messages while using the Messenger app on your phone, refer to the method to recover deleted messages on Messenger on Android here.
