Why an Exclamation mark as unknown device is shown on Windows device manager of Harmony P6?
This issue is shown with such hardware:
| Harmony P6 Series | HMIP6****** |
To fix this issue and to unshown the Exclamation mark as unknown device on Device Manager,
It can be solved by “Restore Defaults” on BIOS.
- Enter the BIOS
2) While the boot screen is displayed, press either the [DEL] or [ESC] key.
3) Enter the password
(Default password: Please refer "UEFI BIOS" on "Harmony P6, User Manual")
4) The BIOS screen will display.
- “Save and Exit” on BIOS
- Select” Restore Defaults” and “Enter” by Keyboard
- Select “Yes” and “Enter” by Keyboard
- Select “Save Changes and Reset” by keyboard
- Select “Yes” and “Enter” by Keyboard
- Product will be restarted as updated BIOS to unshown the Exclamation mark as unknown device on Device Manager:
Publié pour: Schneider Electric Belgium


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