topic Re: Service in Tech Support

Service

Sc17 — Mon, 30 Jun 2025 10:06:51 GMT

I have recently switched my 02 sim to a Samsung s23 but I'm really struggling with signal. Phone is constantly showing no service or emergency calls only. Noone can get through to me? How can I fix this

Re: Service

jonsie — Mon, 30 Jun 2025 10:13:19 GMT

Was your sim ok in your previous phone or is it a new sim?

Help threads here

If it's an old sim card get it changed at an O2 store but take photo ID

But first try your sim in another phone or another working sim in the S23

Re: Service

madasaf1sh — Mon, 30 Jun 2025 10:20:03 GMT

@Sc17

I would in the first instance try a new sim and the best bet is to pop to your local o2 store with photo ID and they can do a sim swap.

It might also be worth trying another o2 sim in your phone / your o2 sim in another phone.

Re: Service

MI5 — Mon, 30 Jun 2025 10:37:01 GMT

@jonsie

In addition to the advice from @jonsie you can use this app to check and report any network issues https://www.o2.co.uk/apps/my-network

Re: Service

Dave-O2 — Wed, 02 Jul 2025 09:02:31 GMT

Morning @Sc17

I'm just following up to check if this has been fixed?

If no, and you have an eSIM, please drop me a PM with your mobile number.