⚠ Generally, you should only upgrade the BIOS of the same branch. Cross-branch upgrades should only be performed when testing different BIOS features.
⚠ Upgrading the BIOS across different branches will invalidate the Secure Boot keys.
⚠ Upgrading to the incorrect BIOS branch may result in some functions of the carrier board not working properly.

BIOS Naming Rule

Example:
LP-BS-S70NC1R200-SR-A-SATA

LP: LattePanda

BS: BIOS

S70NC1R200: Internal version number for LattePanda Mu

SR:

SR: Single Rank memory

DR: Dual Rank memory

A: BIOS version number, with new versions sequentially labeled in alphabetical order

SATA: The interface configuration for this BIOS branch, with detailed configuration differences for each branch available in the README within the branch directory.

No suffix: DFLT (Default) branch

SATA: SATA branch

PCIE: PCIE branch

MUSB: MUSB branch

File Description

Beta: Beta version BIOS, not specific to any branch, intended for professional developers to assess new features.
DFLT: Default version BIOS, which is the BIOS branch that comes pre-installed on the LattePanda Mu.
MUSB: A BIOS branch configured to maximize USB 3.2 10Gbps interface capabilities (coming soon).
PCIE: A BIOS branch configured to maximize PCIe 3.0 lane configurations (coming soon).
SATA: A BIOS branch that provides SATA interface signal.
Tools: Tools for BIOS maintenance.