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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.