Text message (SMS) troubleshooting

    Troubleshoot problems sending or receiving text messages using T-Mobile's network.

     

     

    Cannot send and receive SMS

    1. Place a call to the number you are trying to message to check whether the number is working.
    2. On My T-Mobile, the primary account holder can check if the line has Message blocking or Family Allowances set to block any calls.
    3. Turn off Wi-Fi and Wi-Fi Calling to see if you can send and receive messages on the T-Mobile network. T-Mobile cannot improve your Wi-Fi network.
    4. Delete messages or message threads from your phone or SIM memory and test again.
    5. Uninstall any third-party messaging apps.
    6. For Apple devices, check whether the message is being sent through iMessage. If it is, see iMessage help instead.
    7. For Android devices:
      • Clear the Messages or Messaging app cache. See your device how tos > Apps > Clear & uninstall apps.
      • Check your message blocking settings. See your device how tos > Communication > Block messages.
      • Check that the SMSC number is programmed correctly as +12063130004. See your device how tos > Manage messages.
    8. Turn your phone off and then back on.
    9. Send a text message to your own 11-digit mobile number to check whether you still cannot send and receive texts. Do not use any symbols, signatures, or attached files.
    10. The message "Receiver Number unable to receive message. Message blocking active" means that the person receiving the text message has message blocking enabled. The text message recipient needs to contact their provider.
    11. If you are using a non-T-Mobile phone, place your SIM card in a T-Mobile-branded phone to test. If the problem does not happen with the T-Mobile phone, the problem is with the phone. Contact your phone manufacturer for help.
    12. If you are still having this issue, contact us.

     

     

    Cannot send or receive SMS with international numbers

    1. Check whether you can send messages to domestic numbers. Send a text message to your own 11-digit mobile number. If it fails, see Cannot send and receive SMS, above.
    2. Turn your phone off and then back on.
    3. Make sure that you are using a plus + sign or 011 before the country code and phone number.
      • Do not use the phonebook entry. Instead, manually enter the phone number.
      • For how to enter international phone numbers, see International calling codes.
    4. Test sending and receiving a text message with the international number. Do not use any symbols, signatures, or attached files.
    5. If you are still having this issue, contact us.

     

     

    Error: "Message Blocking Active"

    1. If you get this error when sending a text to a specific person, ask your recipient to check their message blocking setting with their provider.
    2. On My T-Mobile, your primary account holder can check if the line has Message blocking or Family Allowances set to block any calls.
    3. Delete messages or message threads from your phone or SIM memory and test again.
    4. Turn the device off and then back on.
    5. Send a text message to your own 11-digit mobile number to check whether you still cannot send and receive texts.
    6. If you are still having this issue, contact us.

     

     

    Incorrect time stamp

    1. Check the time and date is correct on your phone. Check out the user manual or how tos for your device on the Devices page.
    2. Send a text message to your own mobile number to test the time stamp.
    3. If you are using a non-T-Mobile phone, place your SIM card in a T-Mobile branded phone to test.
      • If the problem does not happen with the T-Mobile phone, the problem is with the phone. Contact your phone manufacturer for help.
      • contact us.

     

     

    Duplicate messages

    1. Check whether the duplicated messages are coming from multiple numbers or from one sender. If they are from one sender, ask the sender if they sent the messages more than once.
    2. Delete messages or message threads from your phone or SIM memory and test again.
    3. Turn the device off and then back on.
    4. If it is an Apple device, reset Network Settings (choose Settings > General > Reset, then scroll down and tap Reset Network Settings).
    5. If you are still receiving duplicate messages, contact us.

     

     

    Delayed messages

    1. Delete messages or message threads from your phone or SIM memory and test again.
    2. For Apple devices, check the message is not being sent through iMessage. If iMessage is failing, the phone will wait and then revert the text to a text message after a delay.
    3. Turn your phone off and then back on.
    4. Send a text message to your own 11-digit mobile number to check whether you can send and receive texts. Do not use any symbols, signatures, or attached files.
    5. If you are still cannot send or receive texts, contact us.

     

     

    Can't use short codes

    1. Make sure of the following:
      • You're not sending to international short codes. We do not support sending to international short codes.
      • Your account is not Simple Choice No Contract. That account type restricts premium services and short codes.
      • If you have an Android device, short codes have been enabled.
    2. On your device, check whether the signal does shows roaming on another network. Short codes do not work while roaming.
    3. If you still cannot use short codes, contact us.

     

     

    Set message limit (Android)

    1. While in the Messages app, press the Menu key.
    2. Tap Settings.
    3. Select the Delete old messages checkbox.
    4. Tap Text message limit.
    5. Enter the limit that you want to set and then tap OK. By default, the limit is 200, but you can enter anything from 10-5000.
    6. Tap Multimedia message limit.
    7. Enter the limit that you want to set and then tap OK. By default the limit is 20, but you can enter anything from 1-99.

     

    Related pages

     

    Caller ID spoofing and text messaging spam FAQs