hidden menu where I can force specific LTE bands?

[nerdydesi]

I have the Chinese model and wondering if there's a dialer code where I can access a hidden menu to lock onto an LTE band? I was able to do this on my LG V40.

Or, is root available for this phone so I can do it with the app, Network Signal Guru?

 

[3597dxta]

I have the Chinese model and wondering if there's a dialer code where I can access a hidden menu to lock onto an LTE band? I was able to do this on my LG V40.

Or, is root available for this phone so I can do it with the app, Network Signal Guru?

Install shorcutmaster lite from google play , go to App Explorer > Setting > scroll down until you see this line (photo), touch the line and select Launch then you'll know what to do next.