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Community Member
April 22, 2026
Question

new phone old sim now working

  • April 22, 2026
  • 3 replies
  • 96 views

Hi, just had new iPhone delivered used my old sim from previous iPhone but showing as no network

    3 replies

    Gemma M
    iD Mobile Employee
    iD Mobile Employee
    April 22, 2026

    Hi ​@Lee hadfield1988,

     

    Sorry to hear you’re having trouble with your new iPhone, I can imagine how frustrating that may be. 

     

    When moving a SIM from an old iPhone to a new one, it can sometimes take a little refresh for the network to pick up properly. First, it’s worth double-checking that you’re using the correct iD Mobile SIM card (and not the old provider’s SIM, if you previously switched).

     

    Here are a few other things to try:

    Make sure Airplane Mode is switched off
    Restart your iPhone
    Remove and reinsert the SIM card to make sure it’s seated correctly

     

    Then try a network restart:

    • Go to Settings
    • Tap Phone
    • Tap My Number
    • Delete the old number
    • Enter the new/current number starting with +44
    • Tap Save

     

    Then follow these steps to refresh iMessage:
     

    • Go to Settings
    • Tap Messages
    • Turn iMessage OFF
    • Go to Settings > General
    • Tap Reset
    • Choose Reset Network Settings
    • Once your iPhone restarts, go back to Settings
    • Tap Messages
    • Turn iMessage ON again

    Your iPhone should now recognise the SIM and verify your number.

     

    After doing this, give it a couple of minutes as it may take a short while to reconnect to the network.

     

    If it’s still not picking up a signal after trying these steps, allow 24 hours and then let us know if the issue is still persisting.

     

    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.
    New Contributor
    September 7, 2026

    Havi g same issure but andriod. Samsung galaxy. 

    Gemma M
    iD Mobile Employee
    iD Mobile Employee
    September 10, 2026

    Hi ​@JoeFinn,

     

    Thanks for your comment, I am so sorry to hear that you are facing the same issue. Please try the below steps:

     

    Open Settings and then tap General management. Tap Reset, and then tap Reset network settings.

     

    If it’s still not picking up a signal after trying these steps, allow 24 hours and then let us know if the issue is still persisting.

     

    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.