LA-F121P – Dell Inspiron 15 5575
The LA-F121P (Compal) motherboard is found in the Dell Inspiron 15 5575 and Dell Inspiron 5775. The catalog lists 11 files for it: 6 BIOS files, 3 schematics, 2 boardviews and 2 EC firmware images.
Revisions seen in file names: 1.0 and 1.00. The BIOS dumps are 8 MB and 16 MB images. ODM project name: CAL51. First posted in August 2019 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 6
Schematics 3
Boardviews 2
From the uploader
DELL CAL51 LA-F121P REV 1.0(A00) 2018-02-08 WORKING BIOS & EC 8MB 100%
DELL CAL51 LA-F121P REV 1.0(A00) 2018-02-08 WORKING BIOS & EC 16MB 100%
Dell Inspiron 15 5575 Compal CAL51_La-k001p_ LA-F121P Rev 1.00 (BDV)(BRD)
Board facts
| Board number | LA-F121P |
|---|---|
| Designed by | Compal |
| Platform group | LA-F |
| ODM project | CAL51 |
| Revisions | 1.0, 1.00 |
| BIOS chip size | 8 MB, 16 MB |
| First seen | 2019-08-29 |
| 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-F121P
- Dell Inspiron 15 5575
- Dell Inspiron 5775
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 |
|---|---|---|
| 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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the LA-F121P board?
LA-F121P is a Compal board number used by Dell.
Which laptops use the LA-F121P board?
Files in the catalog link LA-F121P to the Dell Inspiron 15 5575 and Dell Inspiron 5775.
Is there a boardview for LA-F121P?
Yes, 2 boardview files.
What BIOS chip size does LA-F121P use?
The BIOS images for LA-F121P are 8 MB and 16 MB.
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.