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Hi, I have a Toshiba M305D-S4831 Laptop. I have a blank screen when I power it up. I know the hard drive is good because I tried it in another laptop. I think the issue is the bios. How do I reset it. I opened the back up and I read somewhere you can reset it by shorting it out. Not sure where to do this though. Can you please help Bob Karstien

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Hold down the Fn key (between the left Ctrl and Alt keys), and press F5 twice, (the first press brings up the present setting, the second selects the next option). This scrolls through the screen display selections LCD - CRT - LCD &CRT - TV - TV&LCD.
If this is set on TV, you will get no display on LCD (Screen) or CRT (external monitor)
Also, When using an external monitor, you may need to plug in the monitor, before cold booting your computer (not from hibernate or standby) so that your computer will "see" the monitor, and allow it to be used.

Posted on May 03, 2011

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The blank screen issue is almost always a video problem and requires a motherboard replacement to fix.

If you still wish to try resetting the bios:
Remove the battery/unplug the computer
open the covers on the bottom of the laptop look for a round battery it may be silver or green
Unplug/remove the battery for 30 seconds
plug the battery back in close the covers.
plug in the laptop and see if it powers on.

Posted on Apr 06, 2011

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If you have another account on your laptop that has administrator rights, log in into that account and change the password for your account. If you have an administrator account (even if you don't try putting in Administrator and leave password field blank) try using that account to reset the password, otherwise try one of the following:

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