How to program a Toshiba BIOS flash chip from .ROM file

phuongnt · Mon Jan 22, 2007 6:30 am

I updated my Toshiba Tecra A7 BIOS with windows file downloaded from Toshiba website but the process was failed. Now my laptop is totally dead, won't boot up.
I already tried to re-program the flash chip with the .ROM file after cutting original .ROM file to fit 8Mbit chip size but it doesn't work.
Do I need to convert .ROM file to any other format before using programmer to flash the chip? Any hints?

Please help me. Thanks in advance

Phuong

sunbirds · Mon Jan 22, 2007 2:58 pm

you can use hexworkshop to open the s10200mp.rom,then choose 1048576 byte from the rom header and save it to a new 1m rom.

phuongnt · Tue Jan 23, 2007 5:45 am

Thanks for your tips. Already tried it before but didn't work that's why I posted my question here for any other hints.

Phuong

sliksikki · Mon Mar 26, 2007 11:43 pm

phuongnt wrote:I updated my Toshiba Tecra A7 BIOS with windows file downloaded from Toshiba website but the process was failed. Now my laptop is totally dead, won't boot up.
I already tried to re-program the flash chip with the .ROM file after cutting original .ROM file to fit 8Mbit chip size but it doesn't work.
Do I need to convert .ROM file to any other format before using programmer to flash the chip? Any hints?

Please help me. Thanks in advance

Phuong

I have this same problem with a Satellite M45. Tried to update the BIOS and the power just cut. Now all it does is shut off after a couple seconds.

How did you try "reprograming" the chip? I see all this stuff about using a floppy disk but my laptop doesn't have a floppy drive.