[Android Central Question]

I recently switched to Motorola Droid turbo 2. & I am unable to use Mobile Data. I also configured APN manually but it doesn't worked. Though WiFi is working perfectly. But whenever I make any call from GSM I can see an icon of 3G or LTE. But right after call the icon become invisible.
It's really frustrating can someone help.

[B. Diddy]

Welcome to Android Central! What carrier are you on -- Verizon or someone else? Verizon phones (especially older ones) often don't work well on GSM networks.

[Rukbat]

Also, make absolutely certain that the APN you configured is your carrier's APN, not one that worked on another phone with another carrier. The APN is carrier-specific. It has nothing to do with wifi, voice or text, just mobile data (which includes MMS - which, itself, includes long texts if you have the text app set to not break up long texts).