@jwt8950 - On your PHONE (not on your computer), at the top of the screen, there is a white bar across the screen, populated by, among other things, the time, the battery state of charge, your signal strength and your data capability (1X, EV, or WiFi). This is called the Notifications Toolbar. When you connect a USB cable into the phone that is connected to a computer, another icon will appear up there, on the left side of the screen. It looks like a three-pronged fork. It is same as the marking on each end of the USB cable that came with your phone. If you grab the Notifications Toolbar and pull it down, you will note that beside the icon, it will read "USB connected." TAP ON THIS MESSAGE! When you do this, a box will pop up with the following text: "You have connected your phone to your computer via USB. Select 'Mount' if you want to copy files between your computer and your phone's SD card." Below this statement will be 2 buttons, one labeled Mount and the other labeled Don't mount. Select the button labeled Mount. You will now see notification on your PC that you are connected, and will be given some options.
If you do not see the icon on your PHONE'S Notifications Bar when you connect, you have one of several issues going on.
1. The phone could have been disconnected previously from the PC without the card being unmounted, and because the connection was not closed properly, your PC's Operating System (OS) won't recognize the card.
2. One or more of your PC's USB ports has an issue.
3. The memory card is corrupt. In this case, it will have to be low-level formatted to FAT32 format on a computer, or possibly replaced.
4. There is corruption on your phone's software. If this is the case, you will need to perform a Factory Data Reset (Settings > Privacy).