Solved: not registered on network message

Gower1 · ‎04-12-2022

I have recently changed my phone and sim and am now getting a "not registered on network" message on my phone. Why is this and how do I make phone calls as before?

MI5 · ‎04-12-2022

@Gower1

You can use your old sim or do a sim swap to activate the new sim.

Guide: Sim Swap: a mini guide 2017 update

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.

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MI5 · ‎04-12-2022

@Gower1

You can use your old sim or do a sim swap to activate the new sim.

Guide: Sim Swap: a mini guide 2017 update

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.

Bambino · ‎04-12-2022

@Gower1 The sim you received with the new phone is not active yet. You need to either use your old sim or do a sim swap: SIM Swap: a mini guide (incl eSim) - O2 Community

If you're not comfortable doing the swap yourself, call into an O2 store if you have one nearby and they'll do it for you. Be sure to bring identification with you.

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