Download the update to your computer. Here is the link > Drivers and Software (After selcting your operating system and version click on FIRMWARE)
Plug in your card reader with an empty formatted card> drag and drop or copy the firmware update onto the card>
(Make sure your battery on you camera is charged you dont want your camera to die in the middle of an upgrade!)
Insert the card with the firmware into your camera > navigate to Firmware Ver. x.x.x. in your camera's 3rd set-up menu (with the yellow wrench
Select OK when asked if you want to upgrade to the new version. Let it install then remove your card.
If you have any questions or problems...contact me!