Some mobile phones have a built-in feature to lock the mobile to 3G or WCDMA only mode so that the signals caught by the mobile will be only 3G. Unfortunately some mobile manufactures won't include this simple feature in the settings. This makes phone signal change to GSM or 2G even there is enough 3G/WCDMA signal available.
It's secure to download 3G Only Network Mode. RJ Studios is the creator of this application that relates to the Tools category. According to the latest information, the app is rated 3 on Google Play.
The latest release was on Jun 13, 2016 and 3G Only Network Mode was downloaded and set up by over 100K users. Ads are a part of this application. Get the installation package of 3G Only Network Mode 2.0 that is absolutely free and take a look at users' reviews on Droid Informer. The app runs flawlessly on Android 4.0 and above.
According to the users’ reviews, the considerable plus of the app is the superb interface, however, some people underline that this application has such a disadvantage as too many ads.