Lenovo · laptop motherboard

Lenovo CIG41S

SchematicBIOS
Revisions
Rev 1.2, Rev A
Files
2
Updated

Lenovo CIG41S is a laptop motherboard used in the Lenovo CIG41S.

The catalog has 1 schematic and 1 BIOS file for it, posted in 2021 across 3 Telegram channels. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev 1.2 and Rev A). Check the revision printed on your PCB before relying on a boardview or flashing a BIOS dump — How to Open .FZ Boardview Files explains why it matters.

The schematic is a PDF; 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.

BIOS notes: file names mention 1 MB chip sizes; some archives also hold EC/KBC firmware. Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Compatible models

  • Lenovo CIG41S

Files for Lenovo CIG41S

Schematics 1 All schematics →

BIOS and firmware 1 All bios and firmware →

Frequently asked questions

Which revision of Lenovo CIG41S do I have?
Files for this board mention Rev 1.2 and Rev A. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
What should I check before flashing the Lenovo CIG41S BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 1 MB images; the dump size must match your chip. Some archives include EC/KBC firmware, which may need to be written to a separate chip. 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