How to get a UMTS/H/H+ network with your mobile phone?

There are two possible causes that your smartphone only connects to the slower 2G-Network:

1. First, in the settings of your mobile phone, there is the possibility to specify the networks to which the phone is allowed to connect. Perhaps, this setting is set to "GSM Only" which means, that the phone is only allowed to use the GSM-2G-Network. Usually, you can find these settings under "Settings > Wireless & Networks > (More Settings > ) Mobile Networks". Here, the network mode should be set to "GSM/WCDMA(Auto Mode)". When set to "GSM Only", your mobile phone will not log into the UMTS network (which, however, has the advantage that it saves battery).
2. If this does not help, it may also be that there is simply no UMTS network available in your area. There should be still areas, where the network structure is still not well developed. In this case, unfortunately, you cannot do anything else than asking your provider whether there are plans for upgrading the network in your area. But of course, you can also test the next time, you are in a greater city to see, if there is a better network displayed on your phone.

I hope I could help you and you can soon surf the internet faster with your smartphone. 
Last update on 2018-03-07 | Created on 2014-01-08

1. Go to Settings.
2. Go to More Settings under WiFi/Bluetooth/Data Usage
3. Go to Mobile Networks
4. Here you should get 3 options GSM/WCDMA(Auto Mode), GSM Only & WCDMA Only.
5. Select GSM/WCDMA(Auto Mode)

You should be good to go!
2014-12-17 at 10:57