With　the　development　of　information　technology,　data　become　an　important　part　of　people＇s　life　and　work.　However,　data　may　become　lost　over　time　from　mobile　devices.　Thus,　data　recovery　is　a　necessary　way　to　acquire　data,　especially　missing　data.　In　this　paper,　we　propose　a　method　to　recover　data　from　YAFFS2　through　analyzing　the　recoverability　of　missing　data.　We　will　also　present　some　results　from　the　experiments　on　YAFFS2　under　Linux　system　to　verify　the　effectiveness　of　our　proposed　method　which　shows　that　the　proposed　method　can　recover　missing　data　and　the　method　can　improve　our　previous　method.