Can't get into BIOS on my Toshiba Laptop

Look in BIOS during reboot, make sure the hard drive is detected. Run hard drive test and memory test. Use BIOS feature to setup boot options and boot order, set all to default. Reboot.

Remove coin battery for 2 minutes, Computer will default to original new computer status. Make sure the 2032 coin battery is good.

Since you diagnosed by using an external VGA monitor, you now know the fault lies in either the Video Cable, or the Display Assembly.

Your graphics chipset is good.
(Also known as GPU. Graphics Processing Unit )


A) Video Cable:
(Toshiba = LCD FL Cable )

See if the connections are good. Check the motherboard side connection of the Video Cable, AND the LCD screen side connection.

A loose connection can do this.

1) http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L35/taking-apart-laptop-1.htm

2) http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L35/remove-notebook-screen.htm

(On both links above you can click on the photos to enlarge )

Observe the sheath of the Video Cable for obvious signs of damage.
If the cable looks pinched, stretched, or torn, the tiny wires inside the cable may be damaged also.

Best method is to remove the Video Cable, and perform a continuity test of the wires inside the cable, with a multimeter.
(An economical unit can be purchased for around $8 to $12.
Analog or digital is fine )

B) Display Assembly:

Video Cable checks out OK;

1) Check the connections to the screen Inverter board.
Make sure they are tight. Make sure the Inverter board does not appear to be damaged.

2) Screen Inverter board:

Primer;
An LCD screen does not produce light. It needs an additional light source.

http://en.wikipedia.org/wiki/LCD_screen

A Backlight is the additional light source.
A Backlight is usually a CCFL, or a series of LED lights.

The Toshiba Satellite L35-S2161 Notebook PC, uses a CCFL for a Backlight. (Uses 1 CCFL)

CCFL stands for Cold Cathode Fluorescent Lamp
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

(Average size is 2mm Thick, and is close to the width of the LCD screen in question, Long )

A screen Inverter converts the power (Electricity) from the laptop, for the Backlight and LCD screen.

It is located behind the Display Mask, (Display Bezel), and mounted towards the bottom of the LCD screen.

http://www.zkarlo.com/selected-zkarlo-part/inverter-board-p2215.php

A bad screen Inverter usually causes a garbled display, or doesn't light the Backlight up.

To test a screen Inverter you need a sensitive multimeter, or use a spare Backlight bulb that is known to be good.

Bulb lights up the Inverter is good, the Backlight in the LCD screen assembly, is bad.

[ The LCD screen is composed of layers. These layers are held in place by a metal Screen Frame. {Resembles a picture frame }

The Screen Frame comes apart.

Screws are removed, and the Screen Frame comes apart in four pieces, (Four sides), or the Screen Frame comes apart in two pieces as an Upper half, and Lower half.

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L35/big/satellite-L35-screen-08.jpg

The Backlight bulb is taped to one side of the LCD screen layers, and is under that side of the Screen Frame.

The LCD screen layers MUST be kept aligned, as they were from the factory. For this reason alone, it is tedious for an experienced technician, and is usually not done at the consumer, or DIY level.

http://www.zkarlo.com/selected-zkarlo-part/lcd-cable-p2216.php

More in a Comment.

Regards,
joecoolvette

This link will Driver Regtool help you out if all you need is driver updates. Hope this helps

This driver should do the trick for you as the video on your laptop is a ATI Radeon Xpress series GPU.

http://support.amd.com/us/gpudownload/windows/Legacy/Pages/integrated_mce-xp.aspx?type=2.7&product=2.7.2.3.2&lang=English

Robert from Blitware

A disk error means your hard drive has failed. You will need to replace it. This model laptop uses a Serial ATA model drive.
Your operating system that boots the laptop is stored on this drive.

Applicable Models: Satellite L15-S104, L15-S1041, L20-S310TD, L20-SP231, L25-S119, L25-S1194, L25-S1217, L25-S1213, L25-S1215, L25-S1216, L25-S1196, L25-S1211, L25-S1214, L25-S1212, L25-S121, L25-S1193, L25-S1192, L25-S1195, L35-SP1011, L35-S2366, L35-S2316, L35-S2206, L35-S2194, L35-S2174, L35-S2171, L35-S2161, L35-S2151, L35-S1054, P100-ST7111, P100-ST9212, P100-ST9712, P100-ST9742, P100-ST9772, P100-ST9762, P100-ST9752, P100-ST1072, P100-ST9732, P100-ST1071, P100-ST9412, P100-ST9612, P100-ST9012, P100-ST7211, P105-S921, P105-S931, P105-S9339, P105-S9337, P105-S6227, P105-S6217, P105-S6134, P105-S6124, P105-S6114, P105-S6104, P105-S6102, P105-S9722, P105-S6062, P105-S6022, P105-S6084, P105-S6064, P105-S6034, P105-S6024, P105-S6158, P105-S6148, P105-S6207, P105-S6197, P105-S6187, P105-S6177, P105-S6167, P105-S6157, P105-S6147, P105-S6074, P105-S6054, P105-S9312, P105-S6014, P105-S6002, P105-S6004, P105-S6012 << hideThe printed instructions included with the Recovery and Applications/Drivers Media disc are correct for most computer models. For some models, however -- including those listed above -- booting from the Recovery disc requires pressing the F12 key, rather than the 'C' key. The instructions below are correct for these models.
CAUTION: The Recovery process reformats the computer's hard disk drive, which completely erases its contents -- including all applications, all documents, and all other data stored on the drive. Be sure to back up your documents and other data before following the instructions below.
Follow these steps to erase the current contents of the hard disk drive and to re-install all of the software that was installed on the computer when it was manufactured:
1. With the computer on, insert the first Recovery disc into the optical drive.
2. Shut down the computer (click the Start button, click Shut Down, select Shut Down, click OK).
3. Press the computer's power button to turn the computer on, and then immediately press and hold the F12 key. Release the F12 key when the menu of boot options appears.
4. Use the arrow keys to navigate to the CD/DVD option. Press the Enter key to select it.
The computer will restart, and will boot from the Recovery disc.
5. Follow the instructions on the screen to start the Recovery process.
CAUTION: Once the Recovery process has begun, do not interrupt it.

The computer's hard drive will be formatted, erasing its contents. All of the software that was installed on the computer when it was manufactured will then be re-installed.
6. Once the Recovery process is complete, remove the Recovery disc, and press any key to restart the computer.
- mc/wa

Here is the Toshiba site for support and downloads for your L35-S2366 laptop. Just copy and paste this into your address bar.

http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1700048&rpn=PSL33U&modelFilter=L35-S2366&selCategory=3&selFamily=1073768663&selModel=1700048|PSL33U

This is a known bug on some Toshiba lappies - and one of the reasons I updated my A215 BIOS 4 times in the last few months!

Not sure if this is what happened to you, but...

Applicable Models: Satellite A100-ST8211, A100-SP471, A100-ST1042, A100-ST1041, A105-S4001, A105-S4002, A105-S4004, A105-S4014, A105-S4051, A105-S4094, A105-S4144, A105-S4034, A105-S4054, A105-S4102, A105-S4124, A105-S4114, A105-S4132, A105-S4134, A105-S4064, A105-S4024, A105-S4211, A105-S4201, A105-S4092, A105-S4084, A105-S4184, A105-S4194, A105-S4174, A105-S4164, A105-S4154, A105-S4342, A105-S4284, A105-S4274, A105-S4254, A105-S4244, A105-S4214, A105-S4204, A105-S4104, A105-S4074, A105-S4547, A105-S4334, A105-S4304, A105-S4294, A105-S4364, A105-S4344, A105-S4021, A105-S4031, A105-S4012, A105-S4011, A105-S4397, A105-S4374, A105-S4384, A105-S4022, A110-ST1111, A130-ST1311, A130-ST1312, A130-ST1313, A135-S2246, A135-S2256, A135-S2266, A135-S4499, A135-S4498, A135-S4488, A135-S4478, A135-S4507, A135-S4487, A135-S4477, A135-S4467, A135-S4457, A135-S2396, A135-S2386, A135-S4637, A135-S4527, A135-S2356, A135-S2346, A135-S2336, A135-S2376, A135-S2326, A135-S4517, A135-S2306, A135-S4727, A135-S4677, A135-S4666, A135-S4656, A135-S2426, A135-S4447, A135-S4437, A135-S4427, A135-S4417, A135-S4407, A135-S2296, A135-S2286, A135-S2276, A200-ST2041, A200-ST2042, A205-S4617, A205-S4639, A205-S4618, A205-S4567, A205-S4577, A205-S4587, A205-S4597, A205-S4629, A205-S7459, A205-S7458, A205-S7456, A205-S7443, A205-S7442, A205-S4797, A205-S4787, A205-S4777, A205-S4707, A205-S7468, A205-S7466, A205-S7464, A205-S4607, A205-S4578, A205-S4557, A205-S4537, A205-S4638, L35-SP1011, L35-S2194, L35-S2174, L35-S2161, L35-S2316, L35-S2366, L35-S2206, L35-S2171, L35-S1054, L35-S2151, M200-ST2001, M200-ST2002, M205-S3207, M205-S3217, P100-ST7111, P100-ST1071, P100-ST9612, P100-ST9412, P100-ST7211, P105-S921, P105-S6002, P105-S6014, P105-S6054, P105-S6034, P105-S9337, P105-S6227, P105-S6217, P105-S6207, P105-S6197, P105-S6187, P105-S6177, P105-S6167, P105-S6157, P105-S6147, P105-S6134, P105-S6124, P105-S6114, P105-S6104, P105-S6102, P105-S6062, P105-S6022, P105-S6084, P105-S6064, P105-S6024, P105-S9312, P105-S6004, P105-S6012, P200-ST2071, P205-S6297, P205-S6298, P205-S6247, P205-S6287, P205-S6257, P205-S6267, P205-S6237
Tecra A7-S712, A7-S612, A7-ST7711, A7-ST7712, A7-ST5112


Issue


The computer models listed above may display a "Password =" prompt when the computer is turned on, even though no power-on password has been set. If this happens, there is no password that will satisfy the password request. If the computer is turned off and back on again, it is very likely that the same password prompt will appear. The computer will be unusable until this problem is fixed.

If the problem has not happened yet, you can prevent it from happening in the future by upgrading the BIOS to the newest version.

The occurrence of this problem on any particular computer is unpredictable -- it may never happen, but it could happen any time that the computer is turned on. If this problem does occur, it will be necessary to send the computer to a Toshiba Authorized Service Provider, who will fix the problem at no charge to you.



Resolution


If this problem has not yet occurred on your computer, then click the following link to download and install BIOS version 1.40. This BIOS displays a power-on password prompt only when a power-on password has actually been set via the BIOS Setup program.

You may also browse for a newer version of the computer's BIOS at pcsupport.toshiba.com.

For more help, see Support Bulletin 98081213 Obtaining downloads and support docs from the Toshiba Support website.

If the problem has already occurred on your computer, then please make arrangements with a Toshiba Authorized Service Provider to have this problem fixed at no charge. To locate a Toshiba Authorized Service Provider (ASP), please visit Toshiba's Global ASP Locator at http://pcrepair.toshiba.com

BTW, I've heard that this only happens when you boot up on battery power.

Maybe you can confirm this...

i want to use internet but i cant access.