B121EW03 V0 DELL

BIOS .bin 128 B Shared

EDID image for a B121EW03 V0 laptop screen, tagged for Dell. The B121 prefix denotes a 12.1-inch AU Optronics notebook panel. The 128-byte file is a base EDID block with vendor, product and timing information that the system reads at startup via I2C. A technician writes it to the panel EEPROM using a programmer and clip, or a DDC tool, when the display is not detected correctly or shows the wrong resolution. Check that the panel model and revision agree with the label before programming, and back up first.

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 .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 →

Related files