BIOS Change Point History:

Version V4.20 - 3/10/2023

1. BIOS v4.20  &  EC/KBC v3.30
   1.Improve the stability

Version V4.12 - 3/10/2023

1. BIOS v4.20  &  EC/KBC v3.30
   1.Improve the stability

Version V4.10 - 9/22/2021

1. BIOS v4.10  &  EC/KBC v3.30
   1. Support Sharp FHD panel(G33C000AW110)
   2. EC changes from v3.20 to v3.30
   -Change battery off mode to battery shutdown mode.

Version V4.00 - 8/20/2021

1. BIOS v4.00  &  EC/KBC v3.20
   1.Update GPIO control to support new current limit IC.
   2.Apply UEFI RST Driver 17.8.0.4507.
   3.Change EC from v3.10 to v3.20
   - Support new current limit IC for USB/SD-Card/HDMI port.

Version V3.80 - 5/18/2021

1. T&D v3.80
   1.Release BIOS(v3.80) according to (DBH-CUD-21A-004-001).
2. BIOS v3.80
   1.Improve FAN noise issue.
   2.Intel security update(INTEL-SA-00381, INTEL-SA-00389)
   3.Improve TPM Owner Clear.
   4.Improve boot performance while cold boot with dynabook USB-C Dock connected.
   5.Improve WMI function
   6.Improve the interface to set Boot menu.

Version V3.70 - 12/25/2020

1.  Intel security update (INTEL-SA-00322,INTEL-SA-00347, INTEL-SA-00356) 
2. Improve internal display control
3. Remove Advanced Turbo Control from BIOS Setup item

Version V3.50 - 10/27/2020

1. Intel Security Update (INTEL-SA-00289)
2. Support new thermal table.
3. Support PCIe Phison SSD.

Version V3.30 EC/KBC V3.10- 08/10/2020

1. Intel Security Update (INTEL-SA-00320)
2. Intel Security Update (INTEL-SA-00329)
3. Add a WA to fix the power noise issue.
4. Improve WMI feature.
5. Improve USB memory boot feature.
6. EC/KBC - Improve power consumption control function.
7. EC/KBC - Improve PC stablity.
8. EC/KBC - Add a WA to fix the power noise issue.
9. EC/KBC - Improve PCB power noise issue.

Version V3.20 EC/KBC V3.00- 06/10/2020

1. Support thermal zone function for 20H1 HLK.
2. Fix close lid during shows BIOS post logo from restart, entered OS then open lid will be black screen issue.
3. Update EC/KBC - PDC FW update to v1.60
4. Update EC/KBC - Add WA for CY PDC cannot enter power save mode after Type-C device plug out during SX state.
5. Update EC/KBC - Add WA for power BiBi noise when plug in adapter during S0.

Version V3.10 EC/KBC V2.90- 05/06/2020

1. Improve boot performance
2. Update EC/KBC - Fixed some time TBT dock will be lost issue.

Version V3.00 EC/KBC V2.80- 04/30/2020

1. Fix the issue that USB mouse or keyboard can‘t be wake up from modern standby under DC mode.
2. Resume the RAID UEFI driver to 17.7.0.4404.
3. Fix USB-C Dock LAN lost (disconnection) issue.
4. Update EC/KBC - Fixed the FAN noise issue after system enter Modern standby status. 
5. Update EC/KBC - Fixed issue of PC power on abnormal some times.

Version V2.70- 12/28/2019

1. Improve the Boot performance. 
2. Support eco Charge Mode in BIOS Setup. 
3. Intel Security Update (INTEL-SA-00317). 
4. Improve BIOS Setup icon. 
5. Fixed the control of FAN error detection. 
6. Support Phison SSD. 
7. Change the detection control of Optane SSD. 
8. Improve the detection control of UCSI and Bluetooth. 
9. Supported Diagnostic for HDD/SSD and Memory in BIOS Setup. 
10. Improve the process of Device Access Control for Type-C port. 
11. Support PXE boot (UEFI only) and MAC Address Pass Through for new Travel adapter. 
12. Fix the issue that machine may hang up at restart and power off/on when the lid is closed. 
13. Update EC - Improve CHGIC control function. 
14. Update EC - Improve thermal control function. 
15. Update EC - Improve KB control function. 
16. Update PDC -  FW from 1.6 to 1.7. 
17. Update PDC -  Modify JTAG pin configure settings. 
18. Update PDC -  Modify battery RSOC limit value from 50% to 10% for PDC FW Update. 
19. Update PDC -  Improve EC chip enter deep sleep mode control process.

Version V2.30- 10/02/2019

1. Add a Workaround for BT lost issue.

Version V2.20 - 8/26/2019

1. First release