Solved
new phone old sim now working
Hi, just had new iPhone delivered used my old sim from previous iPhone but showing as no network
Gemma MAnswer
iD Mobile Employee
April 22, 2026
Hi
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
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