If your current MS14B31 BIOS is working fine and you don’t need a specific fix (e.g., for new CPU microcode or a critical CVE), you can safely skip the update. When you do proceed, follow the manufacturer’s guide precisely.
Enter the BIOS and select "Load Setup Defaults" or "Optimized Defaults." This resets the firmware to a stable state.
Complete Guide to MS14B31 BIOS Update: Boost Performance and Stability ms14b31 bios upd
This article provides a complete resource for anyone who owns this laptop and wants to perform a , including how to identify your current BIOS version, a step-by-step update guide, troubleshooting advice, and where to find official files.
Some users have reported that a BIOS update helped with battery drain issues. If you still experience problems after updating: If your current MS14B31 BIOS is working fine
: Resolves hardware-level Intel Microcode vulnerabilities.
Click on the M-FLASH button located at the bottom left of the screen. Complete Guide to MS14B31 BIOS Update: Boost Performance
| Step | Action | Why It's Important | | :--- | :--- | :--- | | | Back up all your important files to an external drive or cloud storage. | While rare, a failed BIOS update can corrupt the system drive or lead to data loss. | | 2. Secure Your Battery | Ensure your laptop is plugged into a reliable AC power source. | A power failure during the update will corrupt the BIOS. The battery alone is not a sufficient backup power source. | | 3. Prepare the USB Drive | Use a spare USB flash drive (≥1GB). Format it to the FAT32 file system. | Many BIOS flash utilities (including M-FLASH) can only read FAT32 drives. | | 4. Handle BitLocker (Critical!) | If you use BitLocker drive encryption, you must suspend it before the update. | Updating the BIOS changes hardware identifiers. Without suspending BitLocker, the system may ask for a recovery key on the next boot, or you could permanently lose access to your data. | | 5. Download the Correct BIOS | Download the BIOS file only from the official MSI website for your exact laptop model. | We will cover this in detail in the next section. |
Resolves power-state issues, such as failure to wake from sleep mode or irregular fan curves.
Always update while connected to a reliable power source. Step-by-Step Instructions: MS14B31 BIOS Update (M-Flash)