Lenovo IdeaPad S205 - 4BCN24WW - Hidden menus

Information
Unlocked two hidden menus named "Advanced" and "AMD", that contain a bunch of settings - including UEFI boot preferences known to cause much confusion with this model in the past.

Model: Lenovo IdeaPad S205
Type: Phoenix SecureCore Tiano
BIOS: 4BCN24WW (version 24)

  advanced.jpg (Size: 168.23 KB / Downloads: 18)
  advanced-boot.jpg (Size: 155.33 KB / Downloads: 14)

Instructions
- Flash BIOS using Flash.bat
- Enter the BIOS after flashing, go to "Configuration" and disable the setting "Hidden Page". Save settings, reboot, and you will see the new menus.

Do it yourself
- Extract PE32+ image section body of module PlatformSetupConfigurationDxe (F2CDF4CF-398D-459D-98CE-A925CAD02194) with UEFITool and parse it with IFR extractor
- Find "Setting: Hidden Page" at the very bottom of the generated file. Suppress instruction for hidden page is at offset 0x1791, the condition is at offset 0x1793
- Change the condition from "45 0A 01 00" to "45 0A 00 00" in the extracted module at offset 0x1793. Screenshot:
  form.png (Size: 1.65 KB / Downloads: 12)
- Reintegrate your patched module with UEFITool and you're done

Credits
- donovan6000 for Universal IFR Extractor
- CodeRush for UEFITool

  Ideapad_S205_4BCN24WW_HiddenMenus.zip (Size: 2.43 MB / Downloads: 0)