Dual SIM on FP2 - both can have 3G/4G?

Help Fairphone 2
,
1

On the FP2 I now have two SIMs. Using Dual Apps I have two instances of WhatsApp (although I am looking for a better alternative than Dual Apps because it is annoying, I need a simple app cloner). I cannot get the new SIM on 3G/4G, it stays on 2G. Is this still a limitation on the FP2?
I want to be able to receive WhatsApp messages on both numbers even when I am without WiFi.

What’s the best way to make this work?

Thanks!

2

It’s a limitation of the FP2 that only one SIM can have 3G/4G.

If you want to turn on 3G/4G to the other card, switch the previous card to 2G first.

3

Those messages are sent and received via the Internet and should work regardless which SIM is activated for the Internet.

4

Thanks! Wow, how come I didn’t know that… So I could even remove the other SIM and still use both WhatsApp instances?

5

That’s correct. You just need the SIM cards once to register the phone number once via the SMS registration process.