Originally Posted by Grut
I'm using the supplied cable that came with my ATT M8.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
Try a different port. Yes it sounds silly, but I have had this same issue on 3 different types of phones. I would always forget about having this problem and I kept saying what the heck is wrong here until I realized it. I always end up putting it in the wrong port so I ended up labeling the correct port on the PC.
Change is inevitable, except from a vending machine.
Current Phones: Note 3, S4, AT&T S5, TMO S5, & LG G2 . Yes, I'm a phone junkie because I switch between all of my phones and never let them totally die.
Phones sitting on standby in a drawer: iCrap5, iCrap4, Note 1, SGS2, HTC Vivid, Note 2, S3, LG G Pro
My one and only tablet....The awesome Galaxy note 10.1