File transfer

[Savva Vasilyev]

I tried using my computer iMac to transfer photos from my Samsung Galaxy J3 phone using android file transfer, but when I clicked folder DCIM,then the Camera folder I get this message: Can't access device storage
If your device's screen is locked, disconnect its USB cable, unlock your screen, and then reconnect the USB cable.

So I am stuck. What to do...

 

[Dannydet]

Turn off your screen lock. Then you should see the files