Summarize the following:
This is the center square button at the bottom of your phone. Select “About Phone” in that menu. If you are running Android v2.2 “Froyo,” you will need to upgrade to v2.3 “Gingerbread.” The Gingerbread update was the first time the Galaxy S had a native screen capture setting.  If you have already upgraded to Gingerbread, you can skip to the next part. This download requires a PC running Windows OS to enable the update. ” This PC download is available through the Samsung site.  Make sure that your phone is fully charged and backed up before starting. Complete the download and installation process for the Kies Mini program on your computer first. Open the Kies Mini program. Connect your PC to your Galaxy S using a USB cable. Select Kies (Firmware update) from the list of options. Choose the “Phone Upgrade” option. Confirm you want to upgrade to start the download process. Your phone will reboot when it is ready. Eject the device and disconnect your phone to use the Galaxy S with Gingerbread.

Summary:
Turn on your Galaxy S phone. Touch the Menu button. Choose the Setting application. Check for the operating system on your phone. Download the new operating system using the Samsung software program called “Kies Mini.