HP · laptop motherboard

HP 15-5103TU LA-A994P

SchematicBIOS
Board code
LA-A994P
Platform
ZS050
Made by
Compal
Revisions
Rev 1.0, Rev 2.0
Files
23
Updated

HP 15-5103TU LA-A994P is a laptop motherboard designed by Compal and used in the HP 15-5103TU, HP Pavilion 15, HP C117 and HP 250 G3 and 2 more.

The catalog has 6 schematics and 17 BIOS files for it, posted between 2017 and 2024 across 4 Telegram channels. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev 1.0 and Rev 2.0). 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 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.

BIOS notes: file names mention 8 MB chip sizes; some archives also hold EC/KBC firmware; versions with a cleaned ME region are included. 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 ZS050; codes LA-A993P, LA-B972P, LA-E994P.

Compatible models

Files for HP 15-5103TU LA-A994P

Schematics 6 All schematics →

BIOS and firmware 17 All bios and firmware →

Frequently asked questions

Which laptops use the LA-A994P motherboard?
File names in the catalog tie LA-A994P to the HP 15-5103TU, HP Pavilion 15, HP C117, HP 250 G3, HP 250 and HP 15-R. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-A994P do I have?
Files for this board mention Rev 1.0 and Rev 2.0. 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.
What should I check before flashing the LA-A994P BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 8 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