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 it is working.
    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. Turn off Wi-Fi and Wi-Fi Calling to test on the T-Mobile network. T-Mobile cannot improve your Wi-Fi network.
    4. Delete messages or message threads from your phone and/or SIM memory and test again.
    5. Uninstall any third party messaging apps.
    6. For Apple devices, check the message is not 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 if 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 then the person receiving the text message has message blocking enabled. The text message recipient needs to contact their provider.
    11. If 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 non-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 that 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. Check that you are using a plus + sign or 011 before the country code and phone number.
      • Do not use the phonebook entry. Please 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 and/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 if 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. See your user manual or how tos.
    2. Send a text message to your own mobile number to test the time stamp.
    3. If 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 non-Mobile phone, the problem is with the phone. Contact your phone manufacturer for help.
    4. If you are still having the issue, contact us.

     

    Receiving duplicate messages

    1. Are the duplicated messages coming from multiple numbers or from one sender? If from one sender, ask the sender if they sent messages more than once.
    2. Delete messages or message threads from your phone and/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 (Settings > General > Reset, then scroll down and tap Reset Network Settings)
    5. If you are still having the issue, contact us.

     

    Received messages are delayed

    1. Delete messages or message threads from your phone and/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 if you still cannot send and receive texts. Do not use any symbols, signatures, or attached files.
    5. If you are still having this issue, contact us.

     

    Sending and receiving 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.
    1. On your device, check the signal does not show roaming on another network. Short codes do not work while roaming.
    2. If you are still having this issue, contact us.

     

    Received messages are delayed

    1. Delete messages or message threads from your phone and/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 if you still cannot send and receive texts. Do not use any symbols, signatures, or attached files.
    5. If you are still having this issue, contact us.

     

    Set message limit (Android)

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

     

    Related pages

     

    Spam FAQs

    Text messages show number / letter / symbols instead of text