Enter the hero of this story: . What is DellBiosResetISO? DellBiosResetISO is not an official tool released by Dell Inc. Rather, it is a community-driven, specialized bootable image file (ISO) designed to forcibly reset, clear, or bypass BIOS/UEFI passwords and system lockouts on Dell hardware.
./reset.sh Wait for the green [ OK ] messages. The system will countdown and restart. Upon reboot, press F2. The BIOS should say "No Password Set." The tool is powerful, but it is not magic. Here is why it might fail:
You’ve never set a password. You bought this laptop used. Or, a former employee left the company and locked the firmware before departing. dellbiosresetiso
# Detect the BIOS chip flashrom -p internal flashrom -p internal -r bios_backup.bin Erase the password region (specific to Dell) flashrom -p internal --wp-disable flashrom -p internal --erase-region 0x20000 --size 0x1000 Reboot reboot
You cannot boot from a USB drive. You cannot reinstall Windows. You cannot even access the boot menu. Your $2,000 laptop is, for all intents and purposes, a . Enter the hero of this story:
If you have successfully used dellbiosresetiso on a Dell Latitude 5420, XPS 17, or OptiPlex Micro, leave a comment on the forum where you found the ISO – your motherboard revision might help someone else rescue their machine today. Disclaimer: The author is not responsible for bricked motherboards, lost data, or voided warranties. Always discharge ESD (Electrostatic Discharge) before handling internal components. When in doubt, contact Dell Professional Support.
Disclaimer: This is risky. If you erase the wrong region, your laptop is permanently bricked. Many modern DellBiosResetISO images contain an auto-run script. Simply type: Rather, it is a community-driven, specialized bootable image
# At the prompt, type: dig64 YOUR-SERVICE-TAG # (The service tag is 7 alphanumeric characters on the bottom sticker) The tool will output a 8-10 digit number. Write it down. Reboot, enter that number into the BIOS password prompt. If the ISO uses flashrom to wipe the chip: