SAMSUNG S20H310B PLUS W25X40(SO8)

BIOS .rar 159 KB Shared

Firmware for the Samsung S20H310B Plus monitor, stored for a Winbond W25X40 flash chip in an SO8 package. The W25X40 is a 4 Mbit (512 KB) SPI part, so the extracted image should be that size. Reflashing this chip with a CH341A or similar programmer and an SO8 clip is a common fix for monitors that stay dark or keep restarting. Read and save the existing contents first, and confirm both the chip marking and the model code on the monitor before writing.

The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.

How to open a .rar file

Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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