When 3G stops..will my phone work ( it has a 4G sim card )

[mucky1957]

I have an OPPO A16s phone which has a 4G sim card. I have Pay As You Go.

Will my phone continue to work once 3G is turned off ??

I have received a text message saying my phone wont work..and when I check the O2 site itself for 'mobiles that will be effected'..it lists my phone..BUT..I have a 4G sim...

Can anyone help please.

[Enlli · Accepted solution]

You asked this earlier. @mucky1957 

People have told you all that they know on the subject 

There are no O2 staff here to confirm or deny otherwise 

https://community.o2.co.uk/t5/Tech-Support/Help-please/m-p/1790048#M56420

[mucky1957]

I actually thought this was a different section to the forum..thats why I asked again here.

Apologies.

[Enlli]

Different sections but all connected and visited by the same people

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But you will get the same answer