
                                 BIOS Changes History
      

General Information:

        M46J9xxUSA is Flash CD ROM image.
        M46JTxxUSA is Flash in DOS zip package.
        M46JYxxUSA is Flash in Windows utility.
        M46KTxxA is the binary image. (BIOS)
        NOTE: All changes carry forward.  That is, if a change is added in 01,it is also in 02, 03 etc.

This file will be updated from the beginning with first Production BIOS release

CHANGES for M46KT15A/M46JT15A
         1.Initial BIOS release

CHANGES for M46KT1AA/M46JT1AA
	1.Optimize BIOS item function and Software WMI function.

CHANGES for M46KT1BA/M46JT1BA
	1.Fix Error 0164:Memory Size Decreased" will not occur if Memory slots are changed or Memory of the same brand Size is replaced

CHANGES for M46KT1DA/M46JT1DA
	1.ThinkCentre support Infineon TPM chip
	2.Modify Setup items

CHANGES for M46KT1EA/M46JT1EA
	1.Optimize WIFI card compatibility function.

CHANGES for M46KT1FA/M46JT1FA
	1.Optimize WMI/BIOS item/audio function.
	2.Update Secure wipe and Lenovo Diagnostic firmware.

CHANGES for M46KT20A/M46JT20A
	1.Optimize BIOS item function and string.
	2.Optimize system sleep function.