
                                 BIOS Changes History
      

General Information:

        9BJ9xxUSA is Flash CD ROM image.
        9BJTxxUSA is Flash in DOS zip package.
        9BJYxxUSA is Flash in Windows utility.
        9BKTxxA 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 9BKT41A/9BJT41A
Base on 9BKT38A/9BJT38A and modify the item:
1.Improve the USB mosue compatibility in DOS.


CHANGES for 9BKT38A/9BJT38A
Base on 9BKT37A/9BJT37A and modify the items:
1.Improve the boot block protection function.
2.Improve the K0 stepping CPU compatibility.


CHANGES for 9BKT37A/9BJT37A

Base on 9BKT36A/9BJT36A and modify the items:
1.Improve the USB Floppy's compatibility
2.Improve the DMILog tool's stability.
3.Improve the express card setting's stability in Win7 64bit. 
4.Improve the "BIOS security vulnerability" function.
5.Enhance the TPM chip's compatibility.

CHANGES for 9BKT36A/9BJT36A

Base on 9BKT35A/9BJT35A and modify the items:
1. Change TOKEN ""FV_ERROR_LOGGING_SIZE"" from 1K to 32K
     
2. Add flash_block_size equal 4K support for logo rom hole



CHANGES for 9BKT35A/9BJT35A

Base on 9BKT34A/9BJT34A and modify the items:
1. Fix BIOS Layout issue
2. EFI BIOS can not detect key patch update, Add Key MonFilter modulepart
3. Add WMIPreloadLanguage Module 



CHANGES for 9BKT34C/9BJT34C:

Base on 9BKT34A/9BJT34A and modify the item:
1. Disable some USB device,BT module,and WiFi module (set default value in Setup Menu to "Disabled")


CHANGES for 9BKT34A/9BJT34A:

1. Fix BIOS Layout issue
2. Fix RBM(WMI) issue Cannot  show F11 item in Startup Interrupt Menu after Ctrl+Alt+Del  Password change input of BRM Multi-countries Keyboard disagree with BIOS setup menu
3. Fix issue: No beep sound when setting a HDD password by using illegal code
4. Patch issue: Can boot from bootable device that excluded from boot order
5. Fix issue: Show 0162 error after clear PAP
6. Patch issue: update EC with afudos 2.32, EC revision not update in BIOS setup menu, but after reboot again, it would be normal
7. Fix issue: Srdos/win can't loaded default the item Hardware Password Manager
8. Fix issue: srdos can not store the "front button control" item


CHANGES for 9BKT33A/9BJT33A:

1. Add "DP Audio Support" in setup menu 
2. Update CPU micro code to CPUID 0x00020655


CHANGES for 9BKT32A/9BJT32A:

1. Add Patch for reboot


CHANGES for 9BKT31A/9BJT31A:
 
1. Patch to fix update 29A BIOS would appear BSOD issue if update BIOS without /BB command
2. Patch for SLP_S3# Minimum Assertion Width set as 2s which dont adjust BB


CHANGES for 9BKT30A/9BJT30A:
 
1. patch: modify the SLP_S3# Minimum Assertion Width to 11(2-2.0002s)
Notice:
    1.this patch update FV_BB, so it should add the command for update BootBlock when update BIOS.


CHANGES for 9BKT29A/9BJT29A:
 
1. Add BIOS setup menu item to implement MMB enable/disable function
2. Add Setup menu beep warning solution
3. Add workaround for S5 WOL fail 
4. fix issue: Remove AC and recovery (do twice), system would auto boot
5. add a HPM issue solution
6. Add Patch code for 0199 POST error
7. Update BIOS setup menu by layout 1.17
8. Change to 2.31B9 in release package


CHANGES for 9BKT28A/9BJT28A:
 
1. Update LenovoCore eModule
   fix issue: when install both ps2 and usb keyboard, the ps2 keyboard will not respond
              in ""Startup Interrupt Menu""
   fix issue: Implement F11 Hotkey feature
2. Fix issue: No beep sound when setting a password by using illegal code
3. Fix issue: Can set password with key combination "Ctrl+Alt+ number/Char"
4. Support SMC(iSCSI boot) function
5. short term solution for SMC + BSOD
   enable or disable the Patch for BSOD by value of ""Boot Agent""


CHANGES for 9BKT27A/9BJT27A:
 
1. Patch issue: system would BSOD when enter USB KB key during windows logo
2. Patch issue: PC Doctor test fail (CMOS RAM)
3. Patch issue: Force boot from HD/CD/PXE fail while sata set as IDE mode.
4. Patch issue: Can't done S3/S4/S5 when enter OS at the first time after disable LAN in CMOS.
5. Add code to backup/restore Nvram SMI as Gibson request
6. Hide the BIOS item "Power->Enhanced Power Saving Mode" as Gibson request
7. fix issue: after update smbios type 11 by amidedos.exe ,system reboot always
8. Update Afudos.exe rev 2.32


CHANGES for 9BKT26A/9BJT26A:
 
1.Base on 25A BIOS code base and only update vbios to ild_1994_QU8V02.dat.
2.Update EC to 25A in release package


CHANGES for 9BKT25A/9BJT25A:

1. Fix system could not go to hibernate when set 1min s3 then 2min s4 in power option.
2. Fix keyboard hang after flash EC issue ubder DOS.
3. Routing GPIO13 to SCI function to asl code to avoid EC SCI potential possible affect to BIOS.
4. Update for fasting boot
5. Update to patch "BSOD when enter Keborad key during windows logo".
6. Update newer version of vbios to ild_2026_QU8V01.dat. 
7. Add new function "Ambient Light Sensor".
8. Update Maebashi_QST_Q57_AIO_v1.2_100609.ini in 8M BIN file.


CHANGES for 9BKT23A/9BJT23A:
 
1. Fix issue that when there is a bootable USB key, force HDD boot always fail.
2. Patch afu2.31B9 for flash EC shout down issue.
3. Fix issue that IDER CD and Floppy fail: AMT client halt with a black sreen after post finishing.
4. Update MIC mute patch to fix long run fail issue.
5. Fix After disable Express Card in CMOS can't enter OS issue.
6. Fix issue :remover CMOS battery and AC,wait for a while,then recovery them,power on hung up at OEM logo screen

