Sim

[Kpower]

Not working 

[jonsie]

Have a look here

Guide: How can I sort out my network issues? 

Is this a new sim @Kpower ?

New phone?

[pgn]

Contract or PAYG, @Kpower?

Check here for tips: here: https://www.o2.co.uk/help/phones-sims-and-devices?page=topic/first-setup/how-to-insert-the-sim/devic...

https://www.o2.co.uk/help/device-and-sim-support/activating-your-sim

[Anonymous]

Hi, if your SIM isn't working, have you tried taking it out the phone and giving it a gentle wipe with a clean soft cloth. (the type of cloth you use to clean glasses) That can sometimes do the trick and get a SIM card working again.

Hope this helps.

😀