LA-6755P – Lenovo G475
The Lenovo G475 and Lenovo G475AX are built on the LA-6755P board designed by Compal. 6 files are indexed for this board: 3 BIOS files, 3 schematics and 1 EC firmware image.
First posted in March 2021 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 3
Schematics 3
Board facts
| Board number | LA-6755P |
|---|---|
| Designed by | Compal |
| Platform group | LA-6 |
| Graphics | discrete GPU |
| First seen | 2021-03-15 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-6755P
- Lenovo G475
- Lenovo G475AX
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the LA-6755P board?
LA-6755P is a Compal board number used by Lenovo.
Is there a boardview for LA-6755P?
No boardview has been indexed for LA-6755P yet; the schematic is available on this page.
Which laptops use the LA-6755P board?
Files in the catalog link LA-6755P to the Lenovo G475 and Lenovo G475AX.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.