Unity Remote 4 won't work at all!

Guys, I have a huge problem. I can't make Unity Remote 4 work at all! I followed like 5 tutorials all over the internet and nothing made it work so far. The problem is simple: I connect the device via USB to the computer, hit play on Unity and nothing shows up on the device. I tried Build & Run and it doesn't work either.

I use Windows 7 64 bits & Nexus 5. Please help, I'm going nuts!! lol

A list of everything I've done so far:

1. Installed latest JDK and checked it was for 64 bits

2. Installed latest Android SDK and checked it was for 64 bits

3. Installed Google USB Drivers and updated the driver for Nexus 5

4. The device is detected on the system (but not on Unity)

5. Installed everything needed on Android SDK Manager

6. Restarted ADB server and made sure my device was there

7. Everything you could imagine! lol

There goes some pictures of everything I could think of [I have more pics but I can post up to 2 pics]. Am I missing something?? If you guys need ANY info to help me solving the problem please do ask it, I really wanna make it work! Thank you!!!