Skip to main content
Community Member
Andypenny
Community Member
Jan 24, 2026 7:48 PM UTC
Question

SIM switch issue

Switched from O2 but can only use the phone on WiFi as idmobile connection is not working . Shows my old number that I’ve taken over as O2 and the idmobile temporary number that does not work. Any ideas ??

    1 reply

    Gemma M
    iD Mobile Employee
    Gemma M
    iD Mobile Employee
    Jan 25, 2026 9:13 AM UTC

    Hi ​@Andypenny 

     

    I'm really sorry to hear you're experiencing issues with your service. Please try the steps below, depending on the type of phone you have:

     

    For Android:

    • Open Settings
    • Tap General Management
    • Tap Reset
    • Select Reset network settings

     

    For iPhone:

    • Go to Settings
    • Tap Phone
    • Tap My Number
    • Delete the old number
    • Enter the new/transferred/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 new SIM and verify your number.

     

    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.

    Not the answer you were looking for?


    Create a new topic and ask a question to the iD Community.


    Create a topic
    Perk up! Enjoy epic discounts, offers and savings from big-name brands, with the all-new iD Perks.
    Terms & ConditionsAccessibility statement