HP · laptop motherboard

HP Presario CQ40 LA-4103P

SchematicBIOS
Board code
LA-4103P
Platform
JAL50
Made by
Compal
Files
3
Updated

HP Presario CQ40 LA-4103P is a laptop motherboard designed by Compal and used in the HP Presario CQ40 and HP Pavilion DV4.

The catalog has 1 schematic and 2 BIOS files for it, posted between 2017 and 2021 across 3 Telegram channels. Each download button opens the original Telegram post.

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.

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 JAL50.

Compatible models

Files for HP Presario CQ40 LA-4103P

Schematics 1 All schematics →

BIOS and firmware 2 All bios and firmware →

Frequently asked questions

Which laptops use the LA-4103P motherboard?
File names in the catalog tie LA-4103P to the HP Presario CQ40 and HP Pavilion DV4. 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 LA-4103P 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