My Razer Blade 15 Base Model (Early 2021), RZ09-0369AG22, has BIOS version 1.00 dated 04/01/2021.
With Secure Boot enabled, it fails before Windows starts with:
“Secure Boot Violation – Invalid signature detected.
Check Secure Boot Policy in Setup.”
Windows starts normally with Secure Boot disabled.
I followed Razer’s official Secure Boot Recovery USB procedure, Answer ID 20795. The recovery USB booted correctly and Secure Boot worked once, but the error returned after the next shutdown/startup.
Is there a permanent Secure Boot certificate / BIOS / firmware fix for this exact model? I do not want to authorize a paid repair or replacement before receiving a diagnosis and written quote.
