A BIOS / firmware dump for Dell hardware. Shared as “DELL_OptiPlex_9020_All_In_One_IPPLP_AZ_BTC_202B_E220370_WORKING.zip” — a .zip file, 6.73 MB.
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 @BIOS_Repair. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →