September 3rd, 2013, 07:28 AM
Join Date: Jul 2010
Carrier: Not Provided
Thanked 6,646 Times in 4,178 Posts
it may be some sort of driver issue. can you see the other files on your "sd card" when connected to the PC?
you should get a pop up asking what you want to do when you plug the phone in. if you select open to see files,you should then see htc one internal storage. click on it,and it should list the "sd card" contents.
you should be able to just drag and drop files onto this screen(assuming you are on stock 4.1)
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