Lenovo · laptop motherboard

Lenovo IdeaPad 15IAU7 NM-E331

SchematicBoardviewBIOS
Board code
NM-E331
Made by
LCFC
Revisions
Rev 1.0
Files
4
Updated

Lenovo IdeaPad 15IAU7 NM-E331 is a laptop motherboard designed by LCFC and used in the Lenovo IdeaPad 15IAU7 and Lenovo IdeaPad 1 15IAU7.

The catalog has 1 schematic, 1 boardview file and 2 BIOS files for it, posted in 2024 across 3 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev 1.0; other revisions of the same board can differ in parts and layout.

The boardview comes in .BDV and .TVW format. .TVW files usually need FlexBV or the viewer they were exported for; OpenBoardView handles .BRD, .BDV and .FZ. See OpenBoardView: Installation and First Steps.

With both a schematic and a boardview you can find a net on the diagram and then locate the same part on the board by its reference designator. No Boardview for Your Board? How to Work Without One shows the workflow.

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 IdeaPad 15IAU7
  • Lenovo IdeaPad 1 15IAU7

Files for Lenovo IdeaPad 15IAU7 NM-E331

Schematics 1 All schematics →

Boardview files 1 All boardview files →

BIOS and firmware 2 All bios and firmware →

  • LENOVO_IDEAPAD_15IAU7_JS47_JS76_NM_E331_REV_1_0_JKCN42WW_BIOS_&.rar 14 MBRev 1.0
    Download from Telegram
  • LENOVO_IdeaPad_1_15IAU7_Laptop_Type_82QD_NM_E331_REV_1_0_UB2_&_UB3.rar 7.9 MBRev 1.0
    Download from Telegram

Frequently asked questions

Which laptops use the NM-E331 motherboard?
File names in the catalog tie NM-E331 to the Lenovo IdeaPad 15IAU7 and Lenovo IdeaPad 1 15IAU7. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-E331 do I have?
Files for this board mention Rev 1.0. 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.
How do I open the NM-E331 boardview file?
The boardview for NM-E331 is available as .BDV and .TVW. .BDV usually opens in OpenBoardView (free) or FlexBV. .TVW usually needs FlexBV or the matching viewer. See What Is a Boardview File and Why You Need One.
What should I check before flashing the NM-E331 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.

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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