LG G4 not recognised by Android Studio

Question

I just got the LG G4 phone, turned on developer options mode, tried running an app from Android Studio but it can\'t recognise my phone. I even tried switching from MTP to PTP b

Answer 1

I had same problem. I was checking Developer Options after plugging USB cable, the USB Debugging option was unchecked and grayed out while cable plugged. I unplugged USB cable, checked USB Debugging option and plugged USB cable again, it worked.