Sent a 4G SIM instead of 5G?

[Palazzo]

I've been having problems receiving SMS messages recently (I get some message, but not others from the same sources).

Anyway, spoke to O2 support who suggested I change SIMS in case that was the problem so they ordered me a new one, however, the one that's arrived is marked 4G while I had a 5G SIM before. I have a 5G handset and 5G was working fine on trips up to London but I don't have it my area.

Should I ask O2 to send (or maybe I can order online)  another 5G enabled SIM, or are all SIMS now 5G capable?

(Still haven't got to the bottom of my SMS issue, but I suspect it may be my default SMS App that's the culprit, as switching the SIM and toggling between 3G and 4G didn't seem to make any difference).

[MI5 · Accepted solution]

@Palazzo 

All sims should now be 5g but if it is clearly marked as 4g, you need to get another.

Any O2 store can provide for you.

Try Goggle sms app as there have been issues with stock apps on some phones.

[pgn]

O2 should have checked that you have 5G enabled on your account and sent the correct SIM - they have sent the wrong thing, so contact them (Social media team links below if you prefer that way) to get the error corrected, @Palazzo.

Otherwise phone numbers in here: Guide: Coronavirus Community Help and Support 

[Palazzo]

Thought - If I've decided the SIM isn't the issue, can I just SWAP back to my old 5G SIM? Seems a shame to just waste a SIM.

[MI5]

@Palazzo 

You could try asking O2 if it can be reactivated.

Not sure if it's possible though.

[Palazzo]

Thanks. I managed to get the old SIM reactivated via online chat support. SMS seems OK with the Google "Messages" app.

[MI5]

You're welcome