Moto G2 - How to change th 3G

Its very frustrating in MotoG2, once you say preferred network as 3G it decided on its own, to use 3g or not to use 3G.

Found this piece of internet, which would force it to use 3G.

 

 

 

    For enabling 3G only mode follow these steps:

 

 

     Firstly we need to define in which SIM we want to enable 3G. For this go to- 

 

Settings > Dual SIM settings > Mobile Data > choose the desired SIM.

 

 

 

Now,

 

• Open your Phone (Dialler) app{the one which you open while dialling a number}.
• Enter this code: *#*#4636#*#*
• An app known as "Testing" will be launched.
• Touch the first option "Phone information".Don't touch other options.
• You will notice a drop-down option above "turn off Radio" button. Tap on it.
• Select the third option "WCDMA Only". Wait for a while...
• You will see that network has changed to 3G mode in the notification bar. If network doesn't change, touch the "turn off Radio" button. you will see your phone's signal are lost. Now again turn it on by tapping on the same button.

         Your 3G/HSPA/UMTS must have been enabled now.