When I hook up a USB cable from my Mac to my Samsung Galaxy phone I get a notice that says "Can't access device storage" "Make sure your device is unlocked and that File transfer or MTP mode is selected" How do I find "MTP mode"? How do I find "Unlock"?


Android devices require a driver/app install - they will not natively hook up to a Mac.

Google provides Android File Transfer for this task.

  • A few months before iPhone 10 came out my previous iPhone died, so I use an Android for for a few months until the iPhone 10 was available. I tried using Android File Transfer and it was worthless, just kept crashing. Had to take the SIM out of the phone and access it through a card reader to manually sift through and transfer files. – user3439894 Jan 22 at 17:57

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