how to enable 4G

[adityapb]

Network is Worst. and i am looking 3g to 4g please help me out. how to unlock 4g? 

[Lord_viridis]

First thing is to check you have all set to active in.
Settings, more, mobile network, preferred network type.
Set to lte(preferred), etc etc

[Lord_viridis]

Pardon?