no service

[Bjack69_]

My phones  just gone to no service I’ve tried turning it off and putting SIM card back in many times but still stuck on no service 

[Bambino]

@Bjack69_ Could be any number of reasons.

How can I sort out my network issues? - o2uk

Why do I have poor coverage indoors? (o2.co.uk)

Could be your sim has failed. If so, call into an O2 store if you have one nearby and they'll give you a new one with your details on it. Be sure to bring photo ID with you.

How to find help & contact O2: A Guide - O2 Community

[Oxonian]

@Bjack69_ 

This app is mentioned in the guides that @Bambino has referenced and it is worth trying :-

My Network App - Find Out More About Your Network Coverage | Apps | O2

https://www.o2.co.uk/apps/my-network

Understand your network coverage

With the My Network app you can keep an eye on your coverage, wherever you are. Download the app and you’ll be able to:

- check the status of our network in your area – you don’t even need to enter your postcode
- test your network speeds
- report any issues with your service.
It’s simple to use and means that you can check the network without having to visit the main site or even enter a postcode.

[pgn]

In addition to the suggestions above: have you checked that your phone bill has been paid (O2 will cut you off if you miss payments). You can check this in your MyO2, App or web-browser: https://accounts.o2.co.uk/signin

Good luck, @Bjack69_ .