Lenovo · laptop motherboard

Lenovo B50-45 LA-B291P

SchematicBoardviewBIOS
Board code
LA-B291P
Platform
ZAWBB
Made by
Compal
Revisions
Rev 1.0
Files
9
Updated

Lenovo B50-45 LA-B291P is a laptop motherboard designed by Compal and used in the Lenovo B50-45 and Lenovo N50-45.

The catalog has 1 schematic, 2 boardview files and 6 BIOS files for it, posted between 2018 and 2026 across 4 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 format. OpenBoardView (free) usually opens these files; FlexBV works too. 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.

BIOS notes: 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.

Also listed under platform ZAWBB.

Compatible models

  • Lenovo B50-45
  • Lenovo N50-45

Files for Lenovo B50-45 LA-B291P

Schematics 1 All schematics →

Boardview files 2 All boardview files →

BIOS and firmware 6 All bios and firmware →

Notes from the source posts

  • APU: AMD E1-Series E1-6010 (EM6010IUJ23JB)
  • KBC: NPEC288NA0DX
  • BIOS: QH64-104HIP
  • 2014/03/13
  • works perfectly
  • Motherboard - Mullins-LarneML
  • BIOS Version - A1CN33WW(V2.01)
  • UEFI Version - CCB.03.74.0

Frequently asked questions

Which laptops use the LA-B291P motherboard?
File names in the catalog tie LA-B291P to the Lenovo B50-45 and Lenovo N50-45. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-B291P 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 LA-B291P boardview file?
The boardview for LA-B291P is available as .BDV. .BDV usually opens in OpenBoardView (free) or FlexBV. See What Is a Boardview File and Why You Need One.
What should I check before flashing the LA-B291P BIOS?
Read the original chip with a programmer and save two copies before writing anything. 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.

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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