I have a Droid DNA, I have HTC Sync Manager installed. I have uninstalled the device a few times and it comes up as the same. When I connect my DNA to My PC the HTC Sync Manager pops up but the options to transfer media and/or sync are greyed out. Then it disconnects and reconnects, recognized as a CD ROM drive and portable media device. (still no access to the internal storage.) When the DC happens the HTC Synce Manager barfs up an error message "Cannot recognize device because the device is locked, Please unlock and reconnect device". This message is without an error number or code. I've googled this message and returned with nothing. This is HTC Droid DNA connecting to a PC running Windows 8. I can answer any questions. but I am hoping for an answer or suggestion. Please display no biased and please do not troll. Thanks in advance.