Connecting your computer to your phone helps you easily transfer data back and forth.
Here's how to connect a Samsung Galaxy J7 Plus to a computer:
Step 1: Connect the cable to the phone and select 'File Transfer'.

Select 'File Transfer'.
Step 2: Choose your Samsung Galaxy J7 Plus device.

Choose your Samsung Galaxy J7 Plus device.
Step 3: Select device memory. You can copy data from your computer to your phone like a USB drive.

Select device memory.
After following the above steps, you have successfully connected your Samsung Galaxy J7 Plus to your computer.
