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New Contributor
September 7, 2026
Question

old sim card new phone transfer not working

  • September 7, 2026
  • 1 reply
  • 9 views

Swapped phones but my sim has stopped working. Samsung galaxy 

    1 reply

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

    Hi ​@JoeFinn,

     

    I'm sorry to hear your SIM has stopped working after moving it to your Samsung phone.

     

    Could you please try the following:

    • Restart the phone.
    • Turn Airplane Mode on for 30 seconds, then turn it back off.
    • Remove the SIM card, check for any damage, then reinsert it.
    • Make sure the SIM is seated correctly in the tray.
    • Check that Mobile Data is enabled.
    • Ensure Network Selection is set to Automatic.

    Reset Network Settings (Samsung)

    1. Go to Settings.
    2. Tap General Management.
    3. Select Reset.
    4. Tap Reset Mobile Network Settings or Reset Network Settings.
    5. Confirm the reset and restart the phone.

     

    If possible, try the SIM in another phone. This will help determine whether the issue is with the SIM or the Samsung handset.

     

    If the SIM still isn't working after these steps, please contact our Customer Service Team via Live Chat so they can investigate further: https://www.idmobile.co.uk/live-chat

     

    Regards,

     

    Gemma M
    The iD Mobile Social Media Team

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