Toshiba Satellite C55T-B5140 BIOS 1.50

Changes:

- Fixed: UEFI EDK2 capsule update vulnerabilities

For CD-ROM BIOS updates in Windows 8 models:

(1) Shut down the system while pressing the SHIFT key to completely power off.
(2) Power on while pressing F2 to enter the BIOS Setup menu.
(3) From the Security tab set the "Secure Boot" setting to "Disabled".
(4) From the Advanced tab, enter "System Configuration" and set the Boot Mode to "CSM Boot" if the option is available.
(5) Press F10 to save and exit.
(6) Boot from the BIOS CD-ROM.
(7) Type BIOS at the prompt then press Enter.
(8) After the BIOS update has completed, restore the BIOS settings that were changed.

Note:

- The BIOS Launcher "CD_ROM Installation" option may not automatically proceed to burn the CD-ROM in Windows 8. If this occurs navigate to the directory named after the BIOS filename in the root directory of the C-Drive (ex. C:skgjv130), and manually burn the CD-ROM from the disc image (ISO) file.

For CD-ROM BIOS updates in Windows 7 models:

(1) Boot from the BIOS CD-ROM.
(2) Type BIOS at the prompt then press Enter.

For all updates:

- The BIOS update will force the computer to shut down or restart. Please make sure to save all work in progress before starting BIOS updates.
- Power on the computer if it is off.
- While the "TOSHIBA" logo is displayed, press the F2 function key to start BIOS Setup.
- Check the version of BIOS and press the F9 function key then Enter to load setup defaults.
- Press the F10 function key then Enter to save settings and exit. The computer will automatically reboot. 

About OS Independent BIOS:

Although installing a newer BIOS version might add new features, update various components, or improve the device's usability, this process is very risky, so the upgrade is recommended to be performed only when it is really needed.

In addition to that, this task should be performed by someone who has the knowledge to successfully complete the installation; regular users may fulfill it at their own risk.

When it comes to applying a new version without taking into account the computer's operating system, the most commonly used method to flash the BIOS is by creating a bootable USB or CD containing the update file, and running it from DOS.

Still, regardless of the method used or whether the upgrade is performed by a regular or power user, it's recommended that the new BIOS be applied in a steady power environment such as the one ensured by a UPS unit.

The Basic Input/Output System (BIOS) is a very important software that loads the currently installed OS, and tests all of the system's hardware components – so make sure you flash it correctly.

Bear in mind that failing to perform a successful installation could seriously damage your device, and the faulty BIOS resulted from the process might even render it unusable.

So, if this release includes useful changes, hit the download button, get the package, and update your BIOS version. Otherwise, check with our website as often as possible, so that you don't miss the release that you need.