BA41-02277A – Samsung NP905S3G
The BA41-02277A (Samsung) motherboard is found in the Samsung NP905S3G and Samsung NP915S3G. The catalog lists 4 files for it: 2 BIOS files, 1 schematic and 1 boardview.
File names mention revision 0.1 or 1.0. First posted in March 2018 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 2
Schematics 1
Boardviews 1
Board facts
| Board number | BA41-02277A |
|---|---|
| Numbering | Samsung board number |
| Revisions | 0.1, 1.0 |
| First seen | 2018-03-12 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Samsung main boards carry BA41-xxxxxA part numbers. |
Laptops that use BA41-02277A
- Samsung NP905S3G
- Samsung NP915S3G
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 |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| 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
Which laptops use the BA41-02277A board?
Files in the catalog link BA41-02277A to the Samsung NP905S3G and Samsung NP915S3G.
Is there a boardview for BA41-02277A?
Yes, 1 boardview file in .bdv and .cad format.
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.