In one sentence, describe what the following article is about:

This should have come with the phone. Make sure it is correct by taking the smaller end of the cable and plugging it into the Galaxy S4's charging port. If you do not have a cable contact your local tech store and purchase one. This should also have come with the phone. The wider, larger end of the USB cable will be able to fit in the port on the charging brick.

Summary:
Find your USB cable. Find the charging brick.