[Anbztht]

i sycn my phone everyday and this trouble start since denim update..

[Syamil Samli]

If the Zune software still doesn't recognize your phone, the "Microsoft Fix It" wizard may be able to resolve the issue. Open Microsoft Fix It, click Run, and then follow the steps.

[Patrick Hart1]

worked for me too - thanks for suggesting the simple and obvious solution - "if in doubt hit the big red switch" or " have you turned it off and then on again?"

[k1s23]

Hey there, yeah that happened to me also so I just gave up and purchased a new Lumia 635 on the cheap and works fine.

[Swiss cheese6000]

It seems similar to what happened with my Titan I, but seriously, already I just synced it last week and now all of a sudden I plug it into my computer and the normal box to explore the phone box does not appear nor when I go to "My Computer". It makes the noise that it's charging when I plug it in, but does not show up on computer. Is it a bad USB, bad cord, need a replacement device or what is the issue? Not even Zune see's the phone as well. On my Titan I, they said it was because the USB stint in the phone got bent and was causing a bad connection.

So I tried for 3 bloody hours to fix this and I finally got it. Gah. Anyway, here's how I did it. go to Control Panel click on View devices and printers click on your Windows Phone it may have an exclamation mark on it, mine did. Right-click on your Windows Phone and a menu should pop up. At the bottom should be Properties. Click on it, select the Hardware tab, then on the little menu that shows up with 3 or 4 options, left click the Windows Phone on there, and click on the button that says Properties at the bottom of the menu. On the new menu that pops up, click on the Drivers tab. Once you're there, select Roll back driver. Then accept the change, and try plugging in your device after you restart the PC. This worked for me, hopefully it does for you as well. Cheers!