W25X20 42lw5700

BIOS .bin 256 KB Shared

Raw 256 KB flash dump labelled W25X20 and 42lw5700, apparently from a Winbond W25X20 SPI chip in an LG 42LW5700 television. A 2 Mbit W25X20 holds exactly 256 KB, so the image size matches that chip. Small serial flashes like this on TV boards usually store boot code, panel settings or T-con data rather than the full main software. Write it with a CH341A-type or similar programmer after reading and saving the original, and confirm the chip location on your board matches where the dump came from.

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 @led_software. Enginerys does not host this file.

All sources (2)

The same file was posted more than once. If one link is dead, try the next.

How to open a .bin file

A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.

CH341A + NeoProgrammer / AsProgrammerflashromRT809F / RT809HTL866II / T48UEFITool (to inspect)HxD (hex editor)

More about .bin files

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

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