4.1.6. Updates with the Factory Update Image
In rare instances you may need to update flash memory with a new factory image and the associated decision firmware and
decision firmware data.
An update may be required for the following reasons:
• If there are vulnerabilities in the firmware
• If there are errors in the firmware or in the factory image
Intel provides a safe solution for you to update the factory image and the associated decision firmware and decision firmware
data remotely. The update process stores multiple copies of critical data so that if power is lost or the update is disrupted, the
device is still able to restart and continue the update. The update continues automatically when power is restored. Here are
the steps to perform the update:
1. Generate the factory update image using the Programming File Generator. The image contains the new factory Image,
decision firmware, and decision firmware data.
2.
Program the factory update image, (*.rpd) to an empty partition slot starting from a new sector boundary in the flash
device.
3. Trigger reconfiguration to load the update image from the starting address specified in step 2.
4. The updated image performs the following operations:
a. Erases and replaces the previous decision firmware and decision firmware data in the flash device.
b. Reprograms the new factory image in the flash device.
c. After the update completes, the updated image removes itself from the CPB and loads the application image or the
factory image if an application image is not available.
5. If the update process used an application slot, you must restore the application image by writing the application
image .rpd to the application slot and the CPB.
4. Remote System Update (RSU)
UG-20205 | 2019.10.09
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