Toshiba · laptop motherboard

Toshiba P855 LA-8391P

BIOS
Board code
LA-8391P
Made by
Compal
Revisions
Rev 1.0
Files
2
Updated

Toshiba P855 LA-8391P is a laptop motherboard designed by Compal and used in the Toshiba P855.

The catalog has 2 BIOS files for it, posted between 2019 and 2023. 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.

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

  • Toshiba P855

Files for Toshiba P855 LA-8391P

BIOS and firmware 2 All bios and firmware →

Frequently asked questions

Which laptops use the LA-8391P motherboard?
File names in the catalog tie LA-8391P to the Toshiba P855. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-8391P 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-8391P 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