Samsung M520 Owner's Manual page 146

Connector
Incorrect
To connect the phone to a computer:
1.
Plug one end of the USB cable into your Power/Accessory
Interface Connector located on the side of the phone.
2.
Connect the other end of the cable to your Computer.
3.
Select Menu > Tools > Mass Storage > Connect to PC. Once a
successful connection is established between the two devices, your
phone will appear onscreen as a newly assigned drive letter.
Note: This procedure requires that a compatible memory card be installed
into the phone prior to connection with the computer. (See "Using a
microSD™ Memory Card With Your Phone" on page 29.)
120 Section 2G: Using the Phone's Scheduler and Tools
Interface
Display
Screen
Correct