LA-E821P – HP 250 G6
The HP 250 G6 is built on the LA-E821P board designed by Compal. The catalog lists 2 files for it: 1 BIOS file and 1 schematic.
File names mention revision 1.0. ODM project names: CSL52, CSL50 and DKL50. First posted in May 2019 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 1
Schematics 1
Board facts
| Board number | LA-E821P |
|---|---|
| Designed by | Compal |
| Platform group | LA-E |
| ODM project | CSL52, CSL50, DKL50 |
| Revisions | 1.0 |
| First seen | 2019-05-14 |
| 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-E821P
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.
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-E821P board?
LA-E821P is a Compal board number used by HP.
Is there a boardview for LA-E821P?
No boardview has been indexed for LA-E821P yet; the schematic is available on this page.
Which laptops use the LA-E821P board?
Files in the catalog link LA-E821P to the HP 250 G6.
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.