With the help of some folks on this forum, I recently selected and purchased a new computer. I've also done a huge phone upgrade by purchasing a Samsung Galaxy S7. ...I am trying to transfer some jpegs from my computer to my phone. I've inserted the memory card in the phone and have hooked up the phone via USB to the computer. However I see nothing anywhere on the screen indicating that the phone is connected. I'm at a standstill as I'm not sure what to do next? Do I need some kind of software like the Wondershare Mobile Go in order to make transfer of these photos? Or is there some way to do this without downloading something new? Any kind of direction or assistance here will be appreciated.
Not having Samsung myself, I am not familiar with precisely how to set this up...but on my Motorola Android phone, after plugging USB cord from phone to PC, you have to tell the phone specifically that you want the USB cable to be used for file transfer and not merely for charging the phone. Once the phone is set up in that manner (you need to do this each time you plug in the USB cable for purposes other than charging!) the PC will see the phone as a connected storage device. Then using Windows Explorer you need to navigate thru connected storage units, then thru the phone's folder system to the place where it expects to have images stored/retrieved.
If you cannot figure out how your phone allows you to tell the USB to function as file transfer (not merely charging), I suggest you READ THE MANUAL. I know that how my last Motorola phone behaved is DIFFERENT from how my current Motorola phone behaves, when the USB cable is first connected between phone and PC 


