The Motorola Moto G does not come with a 3G-only network mode. What it allows you to do out of the box is peg to 2G or 3G-preferred. In 3G-Preferred, many users around here find out that their Moto G stays locked on to 2G more often than not. But, there is good news.
Mobilista, Adewuyi Abiola, sent in this tip with which he has been able to peg his Moto G ot 3G-only mode. “Notification Toggle”is an Android app that creates notifications in the Android status bar to let you quickly switch WiFi, Bluetooth, Silent mode, Screen rotation and Flight mode on and off or to adjust the screen brightness, among other things.
After installation, look for the LTE/4G button that it adds to the Android drop-down menu. That button gives you options for a number of network modes, among which is “WCDMA only”, which is what you are looking for. WCDMA is a technical term for 3G. Select that, and your Moto G should lock to 3G.
We haven’t tested this here, as our review Moto G has been returned, but do try it out and give us some feedback. If you use other Android smartphones without 3G-only mode built in, do give it a try as well.
Download Notification Toggle for your Moto G.