BIOS update
| BIOS update |
Before updating the BIOS (basic input/output system), make sure that the following conditions are met:
- The system BIOS version is earlier than the BIOS package version to be installed.
- The system battery level is greater than 30%.
- The computer is only directly connected to a standard Huawei power adapter.
Problem 1
The BIOS cannot be updated if the battery level is lower than 30%.
Solution
Connect your computer to an AC adapter. When the battery level is 30% or higher, you'll be able to update the BIOS.
Problem 2
The BIOS cannot be updated when the AC adapter is not connected.
Solution
Connect your computer to an AC adapter. When the battery level is 30% or higher, you'll be able to update the BIOS.
In the figure below, the battery level is 97%, but the AC adapter is not connected. Therefore, the update cannot be performed, as indicated in the red box.
The battery level is 90%. After the AC adapter is connected, the firmware update cannot be performed, as indicated in the red box below.
Problem 3
The BIOS package version to be installed is earlier than the system BIOS version. Therefore, the BIOS update cannot proceed.
Solution
The BIOS can only be updated from an earlier version to a later version. It cannot be rolled back from a later version to an earlier version.
BIOS update mode:
Method 1: Update BIOS firmware in PC Manager.
- Open PC Manager and click Manage drivers.
- Update BIOS firmware.
Method 2: Download the BIOS update package for your device model from the official website. The following uses the MateBook X Pro as an example.
- Get the latest BIOS from the official website and decompress it locally.
- Double-click the MKIKR129.exe file and click OK to complete the update.