Patching can replace corrupted sectors of an original dump with healthy code from a known good image. Risks and Security Considerations Using unofficial patched files carries significant risks: Flashing the BIOS from the F12 One-Time Boot Menu | Dell US
: A patched version of the file is written back to the chip. This process is risky and can permanently "brick" the motherboard if the file is incompatible. Official Alternatives to BIOS Patching dell latitude 3420 bios bin file patched