Bios......

[Toyotathon]

How would a person roll back the date of his or her BIOS....?

Say your BIOS dates are 7/03 - How would you change the dates or such to say 7/99 !!!

Thanks!

[Zero Tolerance]

I could be way off target here....but I "THINK" you would basically have to write a revision to a bios flash....

I could be wrong with my comment....

[Dave420]

are you trying to change the internal clock or the date the bios was written?if it is the latter you could dump the bios -find the version info in a hex editor and change it there then write it back -but you better be good with code cause if you change the wrong thing your screwed.

[vantim]

Definitely have to flash it. Unless your talking about the date and time. In that case you just change the time and date in windows. But if your talking about the bios creation date you'll have to write a rom bios flash or flash it with an older bios.


Curious....Why?

[Anaconda]

are you trying to change the internal clock or the date the bios was written?if it is the latter you could dump the bios -find the version info in a hex editor and change it there then write it back -but you better be good with code cause if you change the wrong thing your screwed.

Be VERY careful with editing a ROMBIOS binary. They quite often contain a checksum, and if you just edit it without recalculating the sum, it will fail it's own self test. As a result you will make your system unbootable after you write it back into the Flash, since the BIOS code will abort once it detects the error. The only way to recover then is to physically remove teh chip form the board, and reprogram it externally.