⚠ 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.

Naming Rule

New Naming Scheme (2025-12 and later)

Format S70NC1R200-[Memory]-[Version][-Variant].bin

S70NC1R200: Platform identifier (LattePanda Mu N100/N305)
Memory:
- 8G = 8GB RAM
- 16G = 16GB RAM
Version:
- A, B, C... (incremented alphabetically for each new release)
Variant (optional):
- (no suffix) = Default (PCIe)
- SATA = SATA branch

Examples

S70NC1R200-8G-A.bin → 8GB, Default (PCIe)
S70NC1R200-16G-A-SATA.bin → 16GB, SATA

Notes

New scheme is simplified and user-oriented.
All subsequent updates will follow this naming convention.

Legacy Naming Scheme (2024 Initial Release)

Format LP-BS-S70NC1R200-[Rank]-[Version][-Variant].bin

LP: LattePanda
BS: BIOS
S70NC1R200: Platform identifier(LattePanda Mu N100/N305)
Rank:
- SR = Single Rank (corresponds to 8GB models)
- DR = Dual Rank (corresponds to 16GB models)
Version:
- A, B
Variant:
- (no suffix) = Default (PCIe)
- SATA = SATA branch

Example

LP-BS-S70NC1R200-SR-B.bin → 8GB, Default (PCIe)
LP-BS-S70NC1R200-DR-B-SATA.bin → 16GB, SATA

Mapping: Legacy → New Naming

SR → 8G
DR → 16G

Examples

LP-BS-S70NC1R200-SR-B.bin → S70NC1R200-8G-A.bin (newer)
LP-BS-S70NC1R200-DR-B-SATA.bin → S70NC1R200-16G-A-SATA.bin (newer)

Folder 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.
SATA: A BIOS branch that provides SATA interface signal.
Tools: Tools for BIOS maintenance.

Release Timeline

    2024-06/07                  2025-12                    2026-06
        │                          │                          |
        ●──────────────────────────●──────────────────────────●
        │                          │                          |
[Initial Release]           [Second Release]          [Current Recommended]
    DFLT,SATA                  DFLT,SATA                  DFLT,SATA

For specific model compatibility and functional changes, please refer to the BOS Release Notes located in each branch's folder.