Starting with AD firmware package ADFwPkg 2.16.3 released 02/11/2011 and CO firmware package COFwPkg 1.20.0 released 3/29/2011; when a second FDR is initiated within 10 seconds of completion of the first FDR, a Level 2 FDR will be initiated.

 Level 2 FDRs will clear the main controller AND will return the reader to its original out-of-the-box configuration, with the exception of the Days In Use counter and the Lock Type.  This includes the AD-300 address, the Magstripe track as well as all custom security keys.

 When a lock is re-classed (i.e. AD-200 re-classed to AD-400), a Level 2 FDR is automatically perform by the SUS ensuring that previous settings or old data is not retained in the lock or credential reader memory.