I tried to play Battlefield 6 and decided to enable Secure Boot in my BIOS. However, after making some changes, my computer won't output any display and now shows a D6 error, meaning it can't detect any output device. Here are my system specs: EVGA Z370 Classified K motherboard, Intel Core i7-8700K CPU, and a GTX 1070 Ti GPU, with three monitors that were working fine before. I switched the boot mode from Legacy to UEFI, disabled CSM, and when I tried to reset Secure Boot keys, I saved the changes and rebooted. Now my monitors have no signal, and the system powers on briefly before restarting multiple times. I have already tried resetting the CMOS battery and testing each monitor, but nothing has changed. I'm looking for advice on how to recover BIOS functionality and restore display output.
3 Answers
Another option is to download a BIOS update from another PC and put it on a bootable USB drive. You might be able to overwrite the old BIOS and fix that D6 error.
Also, check if your hard drive is using MBR or GPT. If it's MBR, that could cause problems when you try to enable Secure Boot.
Your computer is actually not bricked! Try pressing and holding the CMOS Reset button on the back of your computer. Keep holding it while you power on the computer; this should reset everything back to default settings.
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