I've tried uninstalling and reinstalling the drivers and both Helium and Sync Manager, but nothing has worked and I am not having much luck finding help in any of the forums. The computer recognizes the phone, but Sync Manager does not. The problem is that Helium still says 'To enable helium on your Android, please connect it to USB.' His site also suggested downloading HTC's Sync Manager so I did that and am still having the problem. The phone recognizes it's connected bc it shows the USB and debugging icons, and the computer recognizes it as well because the One shows as a portable device in the My Computer window and I am able to go in and navigate the folders. So I downloaded that, installed the drivers he points to on the site, and plugged in the phone. or make sure they're never lost in the future. Whether it's on your phone or desktop or even whether it's on Android or iPhone HTC Sync provides a touch of the cloud storage everybody keeps talking about and uses it to let you keep your music and photos wherever you go.

I backed everything up with the old GNex, and when I open Helium on the One it tells me to use the desktop application. HTC Sync is a free multimedia syncing application. So I just got a Sprint HTC One and am trying to get all of my apps over to it using Koush's Helium (Carbon).

How to install htc one sync manager