In these days I’ve participated at an event where I have to host some session about developing on WP8.1.

Obviously I’m counting to use Project my video feature finally available for all the device WP8.1.

In the week before I’ve tested it and work ok, unfortunately when I arrive to the venue and test if everything is ok for the sessions I see that the projection doesn’t work.

After all the test of uninstall drive, remove the device from Device and printers, uninstalled and reinstalled the Projection app with no luck about the feature, I start to think about what other could be the reason for that problem.

I remember the installation of Nokia Recovery Tool for reflashing a Lumia 820 and I start to think the cause of my problem will possibly stay there.

Going under the hood I find that the recovery tool install a driver package that overwrite the standard device driver for WP on WIndows, in order to enable the low level acces to the device.

I’ll then uninstall Recovery tool and all the connected package, removed the driver and device, reinstalled the projection tool et voila’! It work!

So pay great attention if you need to use that tool.