[CH341A] HowTo Flash Coffee Time BIOS to Acer Aspire 780A?

Hello! I’m new to the BIOS modding scene and was hoping some of the wise folks might have some advice for me. I recently repurposed an old Acer Aspire 780A motherboard, and would like to flash a modified BIOS I found on this forum that seems to enable Coffee Lake support on this motherboard.

I’m having trouble figuring out how to flash this BIOS. I purchased a CH341A programmer and followed the guide on these forums to connect it to the BIOS chip with the clip, but I was just not able to get it to detect the chip. I realize this is bit of a delicate process and can be finnicky, so I might give it another go later. But, I was wondering if there are any other ways I can try to flash this custom BIOS? I assume I can’t just use the flasher that Acer supplied for the latest version of its official BIOS… :slight_smile:

Thanks for any help and assistance!


Edit by Fernando: Thread title specified

DB.B8911.001 mb?

Edit: You believe…? Sir please look at the mb PCB label and do not waste my time if you want any help, thank you.

Yes, I believe that’s the one!

My apologies. Yes, confirmed that it is DB.B8911.001. I really appreciate any assistance you can provide.

There’s no header useful on the board.

Ask here to initial user the method used, probably where you got the mod…

Usually 2 options for these cases, Intel FPT tool v11 method (FD should allow operations) or buy a cheap CH341A programmer or similar.

But i would wait for that user linked thread help, as he owns exactly the same system and had success.
Good luck.

Thanks for the assistance. Hopefully I can get a response from the initial user. If not, I think I’ll keep trying the CH341A method.

Reporting back with some good news. I got brave and decided to try using my CH341A programmer and clip again. This time, I removed all SATA drives, PCIe cards, and the case plugs from my motherboard. That seemed to do the trick, and I was finally able to detect, wipe, and flash the modded BIOS. Everything seems to be working splendidly so far. I’m thinking it was a power issue - basically the programmer/clip was trying to supply power to other devices that were on the some bus as the BIOS chip. Once those were removed, all went smoothly. Woohoo!

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