hadoken77
1 Copper

E6430 bios cannot upgrade or downgrade

Recently got an e6430 with bios a A13. I wanted to downgrade to A12. Every time I do it, the process does the same thing. It has a progress bar saying it's preparing to update, but then just reboots and nothing changes. I've used DOS bootable USB, and Windows methods, neither is updating the bios. 

I tried going to A03. Tried to going A18, A20, etc. But nothing ever works. The progress bar says it's preparing, then reboots.

Is there some setting I'm missing? I don't see some sort of "allow downgrade bios" option in the bios settings list. 

Thanks. 

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2 Replies
Moderator
Moderator

RE: E6430 bios cannot upgrade or downgrade

There is a real possibility of bricking the motherboard CMOS by downgrading a BIOS. Updating the BIOS should be fine, but do them in order, A13-A14-A15 etc. and run them from within windows.

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hadoken77
1 Copper

RE: E6430 bios cannot upgrade or downgrade

Thing is, I couldn't upgrade or downgrade the BIOS.

I got a replacement e6430 from the vendor that had A14, and I was able to downgrade to 03, then back up to the A12 that I needed correctly now.

Looks like it was a hardware issue that I couldn't update the bios at all.

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