Flash (Bios) Update Procedure - IBM Aptiva 2158 Hardware Maintenance Service

Flash (BIOS) Update Procedure

NOTE: The flash update procedure does not change the model number and
serial number information in BIOS.
1. Prepare a bootable DOS diskette disk with AFLASH.EXE, MSG.DAT,
VXXYYZZ.RN and VXXYYZZ.BIN files
NOTE: The AFLASH.EXE and MSG.DAT are flash utility programs. The
VXXYYZZ.RN file has the BIOS checksum information. The
VXXYYZZ.BIN is BIOS source code binary file.
2. Insert the diskette and boot from drive A.
WARNING: Do not boot with any memory related driver such as HIMEM.SYS,
EMS.SYS....
3. At the DOS prompt, type A:> AFLASH VXXYYZZ.BIN then press Enter.
4. The program updates the BIOS automatically.
IMPORTANT: : Verify the BIOS checksum value shown on screen is the same
as the one in VXXYYZZ.RN file.
5. Wait for the update to complete (indicated by the beeps).
WARNING: : Do not turn off the system power while the BIOS is programming,
or the flash ROM will be destroyed.
6. Power off system after the BIOS is completely updated.
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