Request for older BIOS version due to overheating issue | Razer Insider
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Request for older BIOS version due to overheating issue

  • November 3, 2025
  • 1 reply
  • 29 views
K

Hello Razer Support Team,

I own a Razer Blade 15 Advanced (RZ09-0409KED3, 2021, Intel i7-11800H).
After updating to BIOS version 2.02, I noticed that the CPU temperatures have increased significantly, and the Intel XTU undervolt option is now locked. This has affected both thermal performance and fan behavior.

Could you please provide me with the previous BIOS version (for example 1.03 or 1.06) or an engineering BIOS that allows voltage and fan control? I am aware of the risks and will take full responsibility for applying it.

Thank you very much for your help — I’ve been a long-time Razer user and just want to restore the previous thermal performance of my system.

This topic has been closed for replies.

1 Reply

Razer.ScarletRouge

Hey there, ​@Koll_057 

 

I understand that you're having an overheating issues with your Razer  Blade 15. Please try these troubleshooting steps on this link to help resolve the issue. Just to set your expectations, it is not possible to provide or facilitate a BIOS downgrade.
 

If the issue persists after performing the troubleshooting steps, please send me a private message together with your device's serial number so I can check its details here in our system and assist you further. Thank you!



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