Network mode

[Mrgrimsby]

My phone has a 4g capable sim card in it but in mobile networks....... Network mode setting I have 3 choices
4(prefered) /WCDMA/GSM
WCDMA ONLY
WCDMA (Prefered) /GSM
If I choose the 3rd option WCDMA (preferred) /GSM it stays on it for a while then it changes to 4(Preferred) /WCDMA/GSM without me doing anything? Does anyone know why this is happening ? Maybe it's normal but I'm not sure, cheers.

[Uliwooly]

That's normal, that your phone goes to LTE (preferred)/WCDMA/GSM 

[Mrgrimsby]

Thanks, why does it do that? We don't have 4g in my area yet? Does it use more battery?

[Uliwooly]

4G does use more battery, your phone will look for the best connection, if you are in a poor network coverage area you might consider to turn off your data, also you might want to check with your carrier/network, they might be able to give you other APN settings 

[Mrgrimsby]

I'm with giffgaff a UK virtual network who use O2's masts etc, there is no 4g where I am but good 3g coverage, I'm on unlimited data tariff so want to keep data on, I did choose the 3rd option in network mode settings but it jumps back to option one, you've said this is normal which is good but I do get a bit confused.