Lenovo · laptop motherboard

Lenovo Yoga 900S-12ISK NM-A591

SchematicBIOS
Board code
NM-A591
Platform
BYG42
Made by
LCFC
Files
4
Updated

Lenovo Yoga 900S-12ISK NM-A591 is a laptop motherboard designed by LCFC and used in the Lenovo Yoga 900S-12ISK.

The catalog has 2 schematics and 2 BIOS files for it, posted in 2023 across 3 Telegram channels. Each download button opens the original Telegram post.

The schematic files are PDFs; the first pages usually hold the block diagram and the power sequence. New to schematics? Start with How to Use a Schematic and a Boardview Together.

Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform BYG42.

Compatible models

  • Lenovo Yoga 900S-12ISK

Files for Lenovo Yoga 900S-12ISK NM-A591

Schematics 2 All schematics →

BIOS and firmware 2 All bios and firmware →

Frequently asked questions

Which laptops use the NM-A591 motherboard?
File names in the catalog tie NM-A591 to the Lenovo Yoga 900S-12ISK. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
What should I check before flashing the NM-A591 BIOS?
Read the original chip with a programmer and save two copies before writing anything. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

Guides for this board

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file