I recently got a Sony a6000. First round of photos, connected camera to my Mac (El Capitan 10.6) and photos downloaded instantly, as with prior DSLR. Now trying to download a second set and nothing works. Tried a few suggestions from prior posts. Nada. Screen says "USB Mode Connecting..." But it does not. No action at all. Tried changing the USB mode to every option provided. Nada. Tried turning the camera on/off with the computer on/off. Nada. I really really do not want to even try the software interface Sony is pushing. And clearly, it isn't necessary as the first download worked perfectly. After 90 minutes, I'm at my wits end. (And I need my wits!) Suggestions???