Since the update to Android 7 I haven’t been able to get 4G unless I take out the second sim card.
From the forum I understand that only one sim card can access 4G at a time and the other needs to be set to 2G. But the thing is there is no 2G option, only 3G or 4G.
So I have to choose 4G or Dual sim
Does anyone have any advice please?
The 4G/3G/2G setting per SIM card can be found under
Settings -> Wireless & networks: More -> Mobile networks -> Preferred network type
German: Einstellungen -> Drahtlos & Netzwerke: Mehr ->Mobilfunknetze -> Bevorzugter Netzwerktyp
French: Paramètres -> Sans fil et réseaux: Plus -> Réseaux mobiles -> Type de réseau préféré
You could try:
Lorna’s trick did work for me, but I need to reboot the phone after the first step in order for it to work. So my steps are:
Deactivate SIM1 I don’t want to be 4G (which has options 4G/3G only)
SIM1 now has “2G” option! Set it to 2G and set SIM2 to 4G.
Going back, can set SIM2 to 2G and SIM1 to 4G, but again it will only have 4G/3G options, so have to repeat next time I want SIM2 to be 4G.
Not ideal, especially if you need to switch often, but might be good for troubleshooting.
I have this same issue, I use a Tele2 (Dutch) SIM in slot 1 and a giffgaff (UK) SIM in slot 2. I would like to have SIM2 set to 2G but I can only choose 4G and 3G like your screenshot.
I have tried a few things including reseting the network settings for both SIM cards. However, simply keeping SIM2 mobile data turned off is my only option for now.
Tele2 does not have a 2G network, that may be where it goes wrong. Though that shouldn’t prevent you from setting giffgaff no 2G.
If I understood you correctly, that’s strange Tele2 not having 2G would cause the other SIM to not let me choose 2G.
Yes that could be a bug in the software as I remember seeing Tele2 users with this problem before.
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