4g issue

[Gu]

Hello
I have dual sim Xiaomi Mi A2 phone with O2 business and Lebara SIM card. I can get very good 4g network with Lebara SIM card but I never had any 4g network with O2 business SIM card. I have contacted O2 multiple time bad they have sent all APN SETTINGS.
I have also got replacement simcard to correct this issue but no success.

Please advice.
Thanks

[MI5]

Have you enabled 4g on both SIM slots or swapped the sims around ?

[madasaf1sh · Accepted solution]

Only one sim card slot supports 4G Data, as per this from Xiaomi Website

"When using two SIM cards, one will support 4G
while the other will not."

[MI5]

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@madasaf1sh wrote:
Only one sim card slot supports 4G Data, as per this from Xiaomi Website

"When using two SIM cards, one will support 4G
while the other will not."

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That's what I figured hence the question about swapping sims around.

[Marjo]

Hi @Gu , it would be great to hear how you're getting on and if you've tried the suggestions above?