My computer seems to fail to boot after a BIOS upgrade

Is is probably too old to take Win 10. Also, USB support normally starts once Windows is loaded. During Boot up, it looking for a hard drive or Bootable CD Media.

By default, the notebook can start only from a bootable hard drive
or bootable drive medium in the notebook.

https://www.google.com/search?q=Compaq+evo+n115+boot+from+usb

It is 21 years old!!

QuickSpecs

NTS Computers Technology BV https://www.nts.nl > pdf > Compaq_EVO_N115
Compaq Evo Notebook N115. DA-11059. World Wide - Version 7 - August 12, 2002. 1. Overview. What's New. • AMD Athlon™ 4 and Duron™ processors with PowerNow ...
15 pages..

You should check the Toshiba WEB site for instructions to how to upgrade (flash) your BIOS, if you make a mistake you may not be able to repair or recover from your mistake.

I have done BIOS upgrades on a few computers.
If your Toshiba has a floppy drive and you can boot up from this floppy drive then the BIOS upgrade needs to be downloaded to a boot floppy. Then boot up from this floppy and run the BIOS upgrade program. When completed, remove the floppy disk and boot up your laptop.

YOU MUST CHECK THE TOSHIBA WEB SITE AS THESE INSTRUCTION MAY NOT BE APPLICABLE FOR YOUR TOSHIBA LAPTOP.

Upgrading the BIOS is an easy task but not recommended unless your computer has a problem which will be solved by a BIOS upgrade.

I assume that you are aware that a failed upgrade may render you system unusable till it is reloaded. Primary cause of a failed upgrade is a power failure so please make sure your PC has a back-up power source in case of a power failure.

The latest BIOS update can be downloaded from this website.

Download the exe file on your desktop and double click on run it. It is to be used on Win XP or 2000.

Before upgrading, check the version of your BIOS. If the version number is same as the one with you are upgrading, it means you have already the latest BIOS and it is not necessary to upgrade. The version number of this BIOS is 3.06 Revision A.

BIOS upgrades are USUALLY done in DOS. Most times, you need to boot from a floppy or CD that is specific for BIOS upgrade. Some BIOS upgrade software may be apllied through Windows, but this depends on your computer manufacturer.
BTW, if your computer is running ok, DO NOT MESS UP WITH THE BIOS. You may risk ruining your laptop.
IF IT IS NO BROKEN, DO NOT TRY TO FIX IT.

This is not a recoverable scenario. Take the system to a repair shop and ask them to quote a replacement motherboard unless you are savy enough to perform the repair yourself.

Hopefully you save a backup copy of the bios before you did the upgrade. If you did then start the upgrade process again and select the original backup copy as the bios file to upgrade. This will put you back where you were before the upgrade.

if you really need the BIOS update. you need a working PC to download the BIOS and unzip it to a CD. install it, since the PC do see the CD, you may have do some maneuver to ge the BIOS installed.

You need to do a BIOS Upgrade. First get the name of your BIOS when the computer boots up. Then go to the we site and find your BIOS brand and get a version update or upgrade.

Be VERY careful and follow the directons to the letter.

Let me know if this helps.

Jack

Try this link

http://www-307.ibm.com/pc/support/site.wss/MIGR-41378.html

Hope it will help.

The bios upgrade procedure stopped at half , leaving the bios corrupted. The computer now cannot do a regular boot procedure, this is the reason why it cannot recognise some device. If you are still able to boot from floppy, you can restart bios upgrade procedure from floppy. Just download floppy version upgrade and re do setup. Even if you do not find latest bios version, just download a floppy upgrade that is working, so that you can restart your machine regularly , and then do the update to latest version.
If you are not able to complete the bios setup, the only way to fix your motherboard will be flashing the CMOS chipset with a chip programmer device that will reinstall bios straight into cmos chipset.
You can have this done at the service point, in this case consider also replacing your motherboard.

Regards