I have acer aspire 5551g,, i try to flash bios,,but didnt workanyh body can help me,,how to flash bios in my notebook.

SOURCE: Reset Bios Password for Acer Aspire 7720Z Notebook - Ron M.

Here is the link to your service manual, when you click on it and bring it up...it is a pdf file so you'll need adobe or another pdf reader, go to page 40, that is the directions for resetting and removing the BIOS/hard drive password. Good luck

http://tim.id.au/laptops/acer/aspire%207730%207730g.pdf

SOURCE: Acer Aspire 1640Z BIOS problem

Dear all,

I also posted this one under "Notebook Bios Problems" which might notbe the correct place. Anyway here it is for you to see and maybe youcan learn from my experience.

-->


Have done a VISTA upgrade with Acers upgrade DVD.
It recommended to upgrade the BIOS - after doing this notebook is dead.
(1 long and 2 short beeps).
If I want to flash a new BIOS with Crisis method which BIOS shouldI use i.e. how do I know if I need the AT or UMA version - how toverify this on the notebook (my version is 1642 ZWLMI)?

I would very much appreciate some help on this - thank you

LATEST NEW - it WORKS AGAIN:
I was a little bit worried when I started but later I was all smiles

So a BIG thanks to everyone who posted possible solutions here in this forum:

1: I bought a NEC model UF0002 USB floppy Disk Drive Unit.
2: Downloaded the zip file from the ACER homepage with the BIOS
(chose the one that should be the correct version for VISTA:
It contains 2 WHP files: ZL9A3A24.WPH and ZL9I3A24.WPH as I
learned from NoClaim's post I chose the ZL9I3A24.WPH.
3: Downloaded the zip files with the Crisis recovery zip-file (See d0gi's
post: http://www.rechner.org/b1800.html ).
4: un-zipped the files
5: copies the file ZL9I3A24.WPH into the crisis directory - deleted the
BIOS.WHP that was allready there. And renamed ZL9I3A24.WPH
to BIOS.WHP.
6: ran the WINCRIS.EXE program (did an unbootable format of the floppy)
7: I now had a recovery floppy.
8: all steps above obviously done on my desktop PC.
9: removed battery from my ACER 1640Z laptop
10: unplugged powercable.
11: inserted the USB floppy in one of the USB ports on the laptop
12: pressed the <fn> and <esc> keys
13: plugged the powercord
14: Turned on the laptop
15: waited a bit - lights came on on the laptop (no beeps)
16: waited a little longer and the light on the floppy came on
17: waited still a bit longer until I could hear the floppy was working
and then I let go of the keys <fn> and <esc>
18: after a while there was no activity on the floppy any more and
shortly after the laptop shot down.
19: the laptop started up again on its own and IT WORKED
20: THE LAPTOP IS BACK AND THANKS TO ALL OF YOU I SAVED A LOT
OF MONEY

SOURCE: Acer Aspire 5610 Notebook driver download

Acer Aspire 5610 Notebook driver

http://www.drivers-software-download.org/tag/acer-aspire-5610-notebook-driver

http://drivers-download-driver.com/tag/acer-aspire-5610-notebook-driver

http://laptop-notebooks-drivers.com/tag/acer-aspire-5610-notebook-driver

http://driversdownloadsfree.com/tag/acer-aspire-5610-notebook-driver

http://notebooksdrivers.com/tag/acer-aspire-5610-notebook-driver

SOURCE: Bios reset on a acer aspire 1640z

To reset the bios in a laptop you need to unplug the power supply and remove the battery. Once you do that press and hold the power button for 45 seconds then put the battery back on and plug it in and then try starting it. Everything in the bios will be reset to the factory. 
Good Luck

SOURCE: Bios laptop Acer Aspire 1360 is empty / broken after wrong flash

how come ur BIOS is empty....
did u FLASH ur BIOS with any firmware update....