The checksum for the firmware is listed at the link below for the Express. If you read the firmware loaded on the PIC with the PicKIT software you should get the values listed. This will tell you the firmware that was loaded is correct and not corrupt.
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LoginIf you have a new Lynx Express, try reading the firmware from the PIC after it's initially built, it's a fun little exercise.
You can find instructions on how to program/read the PIC using the PicKIT in the Express Manual.
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