HP · laptop motherboard

HP T520 13074-1

BIOS
Board code
13074-1
Made by
Wistron
Revisions
Rev A, Rev B
Files
4
Updated

HP T520 13074-1 is a laptop motherboard designed by Wistron and used in the HP T520.

The catalog has 4 BIOS files for it, posted between 2021 and 2026. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev A and Rev B). 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.

BIOS notes: file names mention 8 MB chip sizes. 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 codes 13074-2.

Compatible models

  • HP T520

Files for HP T520 13074-1

BIOS and firmware 4 All bios and firmware →

Notes from the source posts

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  • You can give us as a gift.

Frequently asked questions

Which laptops use the 13074-1 motherboard?
File names in the catalog tie 13074-1 to the HP T520. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of 13074-1 do I have?
Files for this board mention Rev A and Rev B. 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 13074-1 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. 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