Toshiba · laptop motherboard

Toshiba Satellite P855-S5312 LA-8392P

SchematicBIOS
Board code
LA-8392P
Platform
QFKAA
Made by
Compal
Revisions
Rev 1.0
Files
5
Updated

Toshiba Satellite P855-S5312 LA-8392P is a laptop motherboard designed by Compal and used in the Toshiba Satellite P855-S5312.

The catalog has 1 schematic and 4 BIOS files for it, posted between 2019 and 2023 across 2 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 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 2 MB and 4 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.

Also listed under platform QFKAA.

Compatible models

  • Toshiba Satellite P855-S5312

Files for Toshiba Satellite P855-S5312 LA-8392P

Schematics 1 All schematics →

BIOS and firmware 4 All bios and firmware →

Notes from the source posts

  • WORKING BIOS

Frequently asked questions

Which laptops use the LA-8392P motherboard?
File names in the catalog tie LA-8392P to the Toshiba Satellite P855-S5312. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-8392P 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.
What should I check before flashing the LA-8392P BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 2 MB and 4 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

Similar boards

Browse more

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