I have already read some topics on this forum but it is my first message.
As indicated in the title, I cannot connect my Nexus 4 on my computer using MTP. This computer is running Windows 8.1 Update 1. So far I have tried every method I have seen on the web so I am a little bit desperate.
I have tried to plug my device on other computers and it was automatically detected on Windows 7, Windows 8.1 Update 1 and Ubuntu 14.04.
On my computer, as it does not auto-configure MTP I have tried to install ADB drivers, hoping it would help me. Universal ADB drivers, Naked Drivers and drivers from the SDK didn't changed anything. I also tried changing USB port.
It always recognised my phone as a "Nexus 4" in the "Other devices" section of the Device Manager (I do not have "Android Device" section), except in when MTP + debugging are activated. Then I have both "Nexus 4" and "MTP", in "Other devices" section.
It does not work in PTP mode either and I also tried uninstalling/reinstalling the Nexus Root Toolkit, even if I do not see how it can help...
One last point: I have the "connected as multimedia device" notification on my Nexus 4 when MTP is activated, even if it's not recognised by Windows.
Do you have any idea of what I can do?