LA-C311P – Lenovo U31-70
The Lenovo U31-70, Lenovo E31-70 and Lenovo U30-70 are built on the LA-C311P board designed by Compal. The catalog lists 7 files for it: 5 BIOS files, 1 schematic and 1 boardview.
ODM project names: AIVS3 and AIVE3. First posted in December 2018 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 5
Schematics 1
Boardviews 1
Board facts
| Board number | LA-C311P |
|---|---|
| Designed by | Compal |
| Platform group | LA-C |
| ODM project | AIVS3, AIVE3 |
| Graphics | discrete GPU |
| First seen | 2018-12-08 |
| 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-C311P
- Lenovo U31-70
- Lenovo E31-70
- Lenovo U30-70
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.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Which laptops use the LA-C311P board?
Files in the catalog link LA-C311P to the Lenovo U31-70, Lenovo E31-70 and Lenovo U30-70.
Who designed the LA-C311P board?
LA-C311P is a Compal board number used by Lenovo.
Is there a boardview for LA-C311P?
Yes, 1 boardview file.
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.