Can't connect/get computer to recognize android phone (OPO) I've been trying to root my OPO for two days now and I've continued to have this issue. After installing Android Studio + the SDK, as well as downloading the Google USB Driver, when I connect my phone to my computer it shows up as an MTP device under unknown devices. If I allow it to automatically download drivers, it becomes a portable device instead. But I need it as an ADB device. I've already started USB debugging on the phone, as well as switched between all the different USB options on the phone (charging, MPT, PTP, MIDI, etc.) and still no good :(

When I try to update the driver for the "MTP" device, the Google USB drivers don't show up, and if I try to browse manually, it comes up with the error message saying how "the folder you specified doesn't contain a compatible driver." What do I do?

Thanks!
if you are on windows then you need to manually install adb driver for your device. steps are as follow

Right click on computer and goto manage.
then goto device manager
find your device and right click on it 
and from menu choose update driver

now choose let me choose

go next

now browse your google usb driver location

click next

after that you'll see adb driver name then clcik next to install drivers.

see this link for description

https://software.intel.com/en-us/xdk/docs/installing-android-debug-bridge-adb-usb-driver-on-windows