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English Forums => Hardware and Performance => Topic started by: Kets_One on October 28, 2025, 01:21:22 PM

Title: Failed BIOS Update Due to Power Loss
Post by: Kets_One on October 28, 2025, 01:21:22 PM
Hi All,

Today a very sad thing happened during the BIOS update of my dec3850: a sudden power loss.
This interrupted the update process and "bricked" the device. No POST after restart :( :(

While we have no support contract in place (just a private / non-profit organisation) I sent an email to Deciso to check what (if anything) can be done.
I hope the dec3850 can be recovered.
If anyone has an idea here on how to revive it this would be very welcome.
Title: Re: Failed BIOS Update Due to Power Loss
Post by: Greg_E on October 28, 2025, 02:16:41 PM
A hardware programmer like one of the many ch341a kits may be able to erase and upload a new BIOS if you have that BIOS extracted and it is not encrypted.

The exact steps are a little harder to know without working on that hardware. Here is an example of a process: https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3565262-hp-t740-thin-client-bios-dump

Looks like you need to create a free account and be logged in to see the images.

Hopefully someone from Deciso will see this post and comment on a recovery method, even if it follows the above programmer method.
Title: Re: Failed BIOS Update Due to Power Loss
Post by: franco on October 28, 2025, 05:57:54 PM
@Kets_One There will be a reply to your email soon. If you send the device in we can put a BIOS back on it.


Cheers,
Franco
Title: Re: Failed BIOS Update Due to Power Loss
Post by: Kets_One on October 28, 2025, 06:00:06 PM
@franco
Awesome! Looking forward to your mail.
You just made my day! :)
Title: Re: Failed BIOS Update Due to Power Loss
Post by: BrandyWine on October 28, 2025, 08:43:27 PM
No BIOS reset with shadow copy?