Error code                   Description
==============          =============================================================
64			Write Config Table Error
65			Fail to Copy Boot File
66			Fail to Copy Autorun File
67			Fail to Copy PWD.exe
68			Failed to write Formatted image file
69			Read Flash ID Error
70			Too many bad blocks
71			CFG table verify error
72			The 1st block is bad

2			The system cannot find the file specified. 
4			The system cannot open the file. 
15			The system cannot find the drive specified.
20			The system cannot find the device specified.
21			The device is not ready. 
27			The drive cannot find the sector requested. 
29			The system cannot write to the specified device. 
121			The semaphore timeout period has expired. 