System Bios Upgrade Procedure - NEC Versa 2400 Series Service Manual

8. Power on the notebook and notice the BIOS error message informing you that the
memory size stored in CMOS does not match the installed memory size. Press F2
to run the SETUP program and save the CMOS settings anew. The computer will
automatically adjust the memory size.

SYSTEM BIOS UPGRADE PROCEDURE

The NEC Versa 2400 Series supports the EPROM Flash BIOS that allows you to easily
update the system BIOS using the Flash Programming utility program called
"PHLASH.COM & PLATFORM.BIN". Update the system BIOS whenever you are up-
grading the LCD Panel or adding modifications to the computer's hardware function. To
upgrade the System BIOS:
Copy the PHLASH.COM & PLATFORM.BIN BIOS utility program and the
1.
BIOS ROM file to the hard disk subdirectory. You can also choose to run the
program from the floppy diskette.
Disable EMM386 or other memory manager programs before restarting the com-
2.
puter. When booting the DOS, press F5 to bypass the CONFIG.SYS and
AUTOEXEC.BAT. You may also choose to boot from Drive A: with a clean
DOS diskette.
At the DOS prompt, type "PHLASH <BIOSfilename.ROM>" to activate Flash
3.
BIOS programming utility. The computer will then prompt you again before
starting to update the system BIOS. After programming is complete, the system
will prompt you to reboot the computer to activate the new system BIOS.
NOTE: If the notebook has been configured for
save-to-disk, it may be necessary to run PHDisk
to re-partition the drive. The save-to-disk parti-
tion must be of a size sufficient to store the con-
tent of the whole memory size.
Introduction 1-21