BIOS Change Point History:

Version 6.90 & EC/KBC 1.50 - 10/25/2019

1. Updated MCU 0xCC (INTEL-SA-00233)
2. Supported Battery Off Mode (with User Mode)
3. Update BIOS logo to use dynabook logo for all regions, and update BIOS Setup screen to show dynabook logo.
4. EC/KBC - Support Battery off mode control interface. 

Version 6.80 - 01/07/2019

1. Improved: USB Device Recognition
2. Addition: Suport for new LCD panel

Version 6.70 - 02/13/2018

1. Improved: Enhanced security
2. Improved: BIOS update
3. EC/KBC  V1.40
   1) Improve the SD card power off control timing

Version 6.60 - 02/23/2018

1. Improved: Enhanced security
2. Supported: Adding a new display panel
3. EC/KBC  V1.30
   1) Add the ECKBC rewrite lock function 
   2) Added digital signature to rewrite image 
   3) Add countermeasure to indicate battery capacity as 100% when battery communication is failed 
   ・Version Down is impossible after update.

BIOS V6.40 - 11/11/2017

1. Improved: Heat dissipation control
2. Improved: USB mouse behavior.
3. Supported: Device Guard Credential Guard.
4. Supported: Windows Update for BIOS.
5. Support TPM Fw Update function. (TPM or Encryption recovery keys may be require after updating BIOS. Refer to Document ID: 4015668)

BIOS V6.30 - 07/19/2017

1. Updated WMI specification.
2. Improved: the External Keyboard control.
3. Improved: Device Guard and Credential Guard function.

BIOS V6.20 - 07/19/2017

1. Improved: the system stability (Microcode Rev.BA)
2. Improved: the stability related to TPM1.2

BIOS V6.10 - 06/07/2017

1. Improved: System stability.
2. Supported: CPU Core i3 6006U.
3. Improved:Key input for setup transition 
4. Improved:USB device recognition
5. Addition:Support new panel 
6. Improved:HDD Protection

BIOS V5.90 - 10/17/2016

1. Improved: System stability.
2. Improved: The process for the specific HDD.
3. Supported: McAfee/Intel Security Drive Encryption in legacy mode.
4. Improved: Boot menu access with Supervisor privilege.
5. Improved: Graphics function for Hotplug to 4k DP monitor.
6. Improved: BitLocker in legacy mode.

Version 5.80 - 2016-07-11

1. Improved Display time of Boot up Logo for specific customer

Version 5.70 - 2016-06-10 (Not released to the field)

1. Improved WMI
2. Improved Boot Menu Control

Version 5.60 - 2016-05-13

1. Supported an Indonesia model.
2. Improve system stability.
3. Update Intel VGA BIOS v1.10.
4. Upgraded to EC version 1.20 (Improved Charging Process)

Version 5.50 - 2016-03-08

1. Fixed:Bitlocker Recovery Mode issue.

Version 5.40 - 2016-03-04

1. Supported:TPM1.2.
2. Improved:system stability.
3. Setting VR Configuration - PSx.

Version 5.30 / EC 1.20 - 2/10/2016

1. Supported CSM Boot 
2. Improved System stability. 
3. Improved: Power On Display of Lid Close in UEFI Boot (Legacy).
4. EC/KBC: Improved the charging process.