Hi ​@Samiworld 

It sounds like the SIM has not been activated and so is not connecting to a network.
To check, verify the network name: Under the network information, in the phones Settings, you should see that iD Mobile is listed as your network

Is this a new SIM due to transferring from a different network or a replacement SIM for a current account?

If you are new to iD Mobile then here is some advice:-
https://www.idmobile.co.uk/switch

If you are transferring from another network, are you trying to use the SIM before the selected switch date?  Your switching date can be found in your Order Complete email or Contract Summary.  If you're new to iD, your SIM will arrive pre-activated and you can use it straight away.
https://www.idmobile.co.uk/switch

Or you can try this link to activate the SIM:-
https://my.idmobile.co.uk/activate-sim-outside

If it is a replacement SIM then it needs to be activated:-
https://www.idmobile.co.uk/help-and-advice/your-sim-card

Other things to try:-

• Check SIM Placement:

  Power off your phone, then carefully remove and reinsert the SIM card to ensure it's seated correctly in the tray. 
• Clean the SIM:

  Gently wipe the metal contacts on the SIM card with a clean, lint-free cloth. 

Good Luck x 

I went to curry’s and got a replacement sim and I activated it. It takes 24 hours for the sim to work. Thanks for the reply 

Hi ​@Samiworld  glad to hear you got sorted in the end.

My sim is still not working (no signal). It’s been more than 24 hours and still no signal. 

It’s working now Thank you 😊 

We’re very glad to hear ​@Samiworld!

Thanks,

Tyler

how did you get it to work 

Hi ​@Kay79.,

That's a great question.

​@Samiworld , if you've managed to resolve this, we'd really appreciate it if you could share what worked for you, as it may help other members experiencing the same issue.

In the meantime, ​@Kay79., could you tell us a bit more about what's happening? For example, what issue you're experiencing, any error messages you're seeing, and what you've already tried. That will help us provide the most appropriate troubleshooting steps.

Regards,

Gemma M

The iD Mobile Social Media Team

Hey I’ve managed to solve the problem thanks to the id mobile operator over the phone if anyone is having problems with the new id mobile sim with the iPhone just go to settings, phone and just add your new id mobile number and it’ll work 

Hi ​@Kay79.,

That's great to hear! We're really glad the issue has now been resolved.

Thank you as well for taking the time to come back and share what worked for you. That's a great tip and we're sure it will help other Community members who may experience the same issue.

We really appreciate you sharing your solution!

Regards,

Gemma M

The iD Mobile Social Media Team