How to reset BIOS in Toshiba M70

Hello there,
I have some problems with my notebook, actually I tried to upgrade BIOS for my notebook but it failed in upgrade then now my computer is dumped.
There is nothing in screen when I restart my notebook.
I think the problem here is with BIOS, how can I reset to the old version of BIOS?
I tried to disassemble the notebook but I don't know where is the batterry for the BIOS?
I really appreciate your time.

 

did you say nothing on the screen?
AS in COMPLETELY BLACK after powering up?

if so
i had the same problem, i tried to flash my ST9012 with a newer version and my laptop restarted and the screen doesnt show a thing.

i brought my laptop to an autorized service provider (ASP) and it messed up the whole mother board, they replaced my my whole motherboard to get it working

before doing anything else REMOVE THE CD or whatever auto flashing device you use to flash... i forgot to remove my auto bios flash cd and it reflashed the bios again and they had to replace the motherboard 3 times. thank god im still under warranty. it wouldve dented my pocket really bad

 

well on reg pcs you can use a floppy and autoexec.bat and do a blind flash but with laptops all iv seen are the gui flashes so not sure what you can do maybe contact who made your laptop.

 

It means that there is no solution for my case? I found the battery for BIOS but it's hard to remove? any body know that is the any reset jumper here?
Thank you for all your replies.

 

Yep, It's completely BLACK after powering up, poor me, my notebook was over the warranty

 

ye, thats what the tech told me, "bios reseting wont really fix the getting a black screen after reflashing"

if its over the warranty.. oh man tought luck, first ask them how much it cost, cuz i know you gotta pay for hourly labour+parts+minimum charge. but try the ressetting first.. who knows, it might work

 

If you contact Toshiba, they will be able to give you the BIOS password you're looking for.