Lenovo · laptop motherboard

Lenovo ThinkPad X390 Yoga 18729-1

SchematicBIOSArchive
Board code
18729-1
Made by
Wistron
Files
6
Updated

Lenovo ThinkPad X390 Yoga 18729-1 is a laptop motherboard designed by Wistron and used in the Lenovo ThinkPad X390 Yoga and Lenovo X390.

The catalog has 2 schematics, 3 BIOS files and 1 archive for it, posted between 2021 and 2026 across 4 Telegram channels. Each download button opens the original Telegram post.

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 1 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 448.0G104.

Compatible models

Files for Lenovo ThinkPad X390 Yoga 18729-1

Schematics 2 All schematics →

BIOS and firmware 3 All bios and firmware →

Other files 1

Frequently asked questions

Which laptops use the 18729-1 motherboard?
File names in the catalog tie 18729-1 to the Lenovo ThinkPad X390 Yoga and Lenovo X390. 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 18729-1 BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 1 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