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New Contributor
Nov 9, 2026 3:10 PM UTC
Question

My Iphone can receive but not send SMS text messages. ("Not Delivered!")

My Iphone can receive but not send SMS text messages. I have updated software, reset Network and a dozen other things without success! HELP!

    6 replies

    Gemma M
    iD Mobile Employee
    iD Mobile Employee
    Nov 10, 2026 1:08 PM UTC

    Hi ​@DelMel,

     

    We are so sorry to hear of the issues that you are currently facing. Please try the steps below:

     

    For iPhone:

    • Go to Settings
    • Tap Phone
    • Tap My Number
    • Delete the old number
    • Enter the new/current number
    • Tap Save

     

    Then follow these steps to refresh iMessage:

    1. Go to Settings
    2. Tap Messages
    3. Turn iMessage OFF
    4. Go to Settings > General
    5. Tap Reset
    6. Choose Reset Network Settings
    7. Once your iPhone restarts, go back to Settings
    8. Tap Messages
    9. Turn iMessage ON again

     

    Your iPhone should now recognise the SIM and verify your number to get it working again.
     

    Regards,

     

    Gemma M

    The iD Mobile Social Media Team

    Did my comment help answer your question? If so, don't forget to mark the response as the Most Helpful Answer.
    DelMelAuthor
    New Contributor
    Nov 10, 2026 4:10 PM UTC

    Thanks. I don’t have an old number, it’s the same number. Should I delete it and then add it again?

    DelMelAuthor
    New Contributor
    Nov 10, 2026 6:00 PM UTC

    My “Personal” and “Secondary” phone numbers are appearing as the same number, according to my partners phone one should be the new number provided by ID? I have this number but I am unsure how to input? 

    DelMelAuthor
    New Contributor
    Nov 10, 2026 4:49 PM UTC

    Now I cannot text at all!

    Gemma M
    iD Mobile Employee
    iD Mobile Employee
    Nov 10, 2026 7:47 PM UTC

    Hi ​@DelMel,

     

    If both your Personal and Secondary numbers are showing as the same number, we'd recommend deleting the Secondary number first and making sure your Personal number is set as the Primary number, also make sure that the iD Mobile SIM is in the device or has been installed.

     

    Once you've done that, add the number again using the +44 format, followed by the rest of your mobile number without the leading 0.

     

    After updating the number, perform another network reset and test your text messages again.

     

    If you're still unable to send texts after trying this, please contact our Customer Service Team via Live Chat to arrange a replacement SIM, as that may be the next step.

     

    You can contact them here: https://www.idmobile.co.uk/live-chat 


    Regards,


    Gemma M
    The iD Mobile Social Media Team

    Did my comment help answer your question? If so, don't forget to mark the response as the Most Helpful Answer.
    DelMelAuthor
    New Contributor
    Nov 10, 2026 9:31 PM UTC

    Hi, ID sent me another E sim but it did not resolve the issue. I attempted to start again by deleting the sim and downloading again, unfortunately the download is not working and now I have lost messaging and I cannot make a call. Are you able to help, I am elderly and need communication. Thanks.