Android device not recognized in Ubuntu 16.04

Issue

Recently I installed Ubuntu 16.04, and Android Studio 2.1.2.

I have tried these instructions to try to run the app in a physical device, without any luck.

Am I missing something? It is the first time I try Ubuntu, so I'm kinda new to it. Also, I'm trying with a LG Stylus 3 device. (With debug option enabled).

Thanks for any help.

Solution

After a lot of things I tried, this was the solution.

I followed this instructions

And what did the trick was to change in my phone the "USB PC connection" from Media device (MTP) to Send Images (PTP).

Answered By - roy_lennon