Answer:
It is possible for any PC user to reprogram the firmware on chips when a new firmware version becomes available from the device's manufacturer. However, manufacturers take great pains to release stable firmware, and they only release upgrades to fix compatibility problems, performance issues, and bugs (accidental instruction errors in a current firmware version). For example, a manufacturer may update its firmware because it discovered that an error occurs when its device is used in a particular PC setup.
You can check for firmware upgrades by visiting the technical support area at the device's manufacturer's Web site. New firmware is often listed alongside new drivers and management applets on a Web page labeled "Downloads."
But should you upgrade your firmware if a newer version is available? Well, that's the real question. The rule here is: If it isn't broken, don't fix it. So peruse the Readme file or release notes associated with the newer version and decide if your system is experiencing a problem that the update addresses. If so, it's usually worth the upgrade. If not, leave your current firmware version alone.
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