Technical Advisory (PDF)
For a small percentage of units, the threshold for charge on the gas gauge subassembly might not provide enough margin to accurately judge the health of the super capacitors. This can result in a failure of the RMFBU to complete a learn cycle. This document lists the controllers impacted by this issue.
A modification to the gas gauge charge level thresholds resolves this issue, and can improve the usable life of the super capacitor. See the technical advisory for recommended firmware updates.
File name: TA-1055-1.pdf
Size: 92 KB
Date: May 2014
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This applies to: