This is a simple step by step guide of a method to revert to an older version of InsydeH2O BIOS. Initial production release for these models.Įxport Control and EULA Use of any software made available for download from this system constitutes your acceptance of the Export Control Terms and the terms in the Dynabook end-user license agreement both of which you can view before downloading any such software.HOW TO REGRESS or DOWNGRADE to older INSYDE BIOS.Improved: "HDMI Audio Device Auto Switch" issue.Fixed: USB 2.0 device in a USB 3.0 port does not show the "Safely Remove Hardware." icon when upgrading from Windows 7 to Windows 8.Made a change to the VGA INT 10h function call order.Fixed: LCD (Lid) Power On issue if system is shut down during a restart.Updated: VBIOS to BR43798.001 for display corruption in battery mode on AMD Comal PX5 configurations.
While the "TOSHIBA" logo is displayed, press the F2 function key to start BIOS Setup.Please make sure to save all work in progress before starting BIOS updates. For all updates: The BIOS update will force the computer to shut down or restart.For CD-ROM BIOS updates - Windows 7 computers: Boot from the BIOS CD-ROM, type BIOS, then press enter at the C:\ prompt.(7) After the BIOS update has completed, restore the Boot Mode setting to "UEFI Boot" and the Secure Boot setting to Enabled. (6) Boot from the BIOS CD-ROM and type BIOS at the C:\ prompt. (4) Go to the Advanced tab, enter "System Configuration" and set the Boot Mode to "CSM Boot." (5) Press F10 to save and exit. (3) Go to the Security tab and set the "Secure Boot" setting to "Disabled". (2) Power on and press F2 while the TOSHIBA logo is displayed to enter the BIOS Setup Menu. For CD-ROM BIOS updates - Windows 8 models: (1) Shut down the system while pressing the SHIFT key to completely power off.See the included documentation for details. WinRAR self-extracting ZIP file includes both Windows-based and diskette based BIOS update installation options.
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