Re: acer XC-605 CH341A Programs Correctly but BIOS Still Won't Work



hi piernov, thank you for your reply. i have no knowledge about cleaning the ME or modifying BIOS files myself sadly, is an unclean ME a major issue? the computer does work in general

edit: because of your reply, i tried the BIOS that SMDFlea posted above, with the one i found online i did notice POST was a bit slower than usual (20s vs 5s before), but now with the BIOS SMDFlea posted it works perfectly and POST is much faster!

Thank you both for your help! big thanks to SMDFlea...

Re: CH341A Programs Correctly but BIOS Still Won't Work



haha definitely!

for sure! this was a P11.B4 version...

Re: CH341A Programs Correctly but BIOS Still Won't Work



Thanks, i just came across a telegram channel that had a bios for my device as well and flashed to the chip, cleared the cmos and, lo-and-behold, it worked!! im back into the computer!

Learned a very valuable lesson to always backup the running bios even if the flashing fails lol

Thanks again for all your time and help SDMFlea!...

Re: CH341A Programs Correctly but BIOS Still Won't Work



Thanks for the reply SMDFlea!

Unfortunately i've tried all the P11 bios's from acer's site to no avail
i retried with the one you sent and still getting the same issue
battery looks to be working well and read/write to the chip is successful but i still get nothing apart from the fans going on ...

Re: CH341A Programs Correctly but BIOS Still Won't Work



Thanks for the help ASB, i flashed it with NeoProgrammer, everything went successfully (unprotect-erase-write-verify), but the same thing happens when i start the system

fan goes on, but no display or other feedback...

Re: CH341A Programs Correctly but BIOS Still Won't Work

ya, unfortunately i didnt make the smart decision to back up the bios before erasing/writing

i'll try to find if someone else can provide a dump for the acer XC-605 system

Re: CH341A Programs Correctly but BIOS Still Won't Work



thanks for the reply, below are the answers to your questions:

im just assuming the bios file is 4mb since thats the size i get on all the bios files i downloaded from acer

i dont have the file i originally read from the chip since i figured the original flash was already corrupted

the read itself looks to be successful since the programs match and verify with the files i try to flash

if the acer file is 4mb but i should be writing 8mb of data, how...

hi all, so i have an acer XC-605 desktop which i believe had a bad bios flash.
i setup an ssd for it and it didnt get recognized in the bios so i attempted a bios update with the provided gui from acers website (going from P11.A2 to P11.B4). i rebooted and it seemed the bios update was successful but when i turned off the pc, it would no longer turn on properly and gave me one long beep (fan goes on, maintains power but no display etc, seems to fail post).

i tried a bunch of stuff like reseating ram etc and tried to reflash from usb but since nothing worked i eventually just...

Re: New Members - please post your introductions here

hi, just arrived to the community hoping to help and contribute with some knowledge!