http://www.crucial.com/support/firmware.aspx

剛在M01看到的，新版韌體0309好像是釋出了

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Correct a condition where an incorrect response to a SMART counter will cause the m4 drive
to become unresponsive after 5184 hours of Power-on time.The drive will recover after a power cycle,
however, this failure will repeat once per hour after reaching this point. The condition will allow the end user
to successfully update firmware, and poses no risk to user or system data stored on the drive.