Zitat von Lost_N_BIOS im Beitrag #58

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@GooballDiesel His BIOS IS >> ZAA2 variant, not others, unless he was wrong in telling me this from the get-go. All others will fail if you ever get it to start recovery.
Use this ZAA2 name and BIOS.fd etc and I would do two rounds, one with the 6765 file (renamed to both) and another round with the 6144 (renamed to both)

@fairestmeat - I would use stock ONLY, not FPT backup from before, or mod BIOS I sent you etc.

Actually, it it were me I'd set this aside and save yourself the headache and hassles, wait on programmer to arrive, then send me your dumped BIOS and I'll fix for you with your modified BIOS region dump you sent me that I unlocked for you already.
Then you will be back at square one, post #13 = Successful BIOS Mod & Flash, all OK etc

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Yes, see my edit just now on post #60 too Confirming ZAA2 is his ID, so only ZAA2.fd or ZAA2.bin or BIOS.fd or BIOS.bin would work, if it's ever going to work
If recovery works on this exact model, exact directions would be easily found in google (not generic Acer method, although those do work sometimes, but not always)
Plus, BIOS may be bricked beyond recovery via this method anyway, hard to know for sure unless you've used recovery method in the past on this exact system to recover or flash mod BIOS etc.

Zitat von Lost_N_BIOS im Beitrag #60

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Did you miss my post above?? This is wasting time with incorrect name @ ZAAA

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@Lost_N_BIOS @GooballDiesel

Ok guys, thanks alot for the help!

I'll try contacting acer, if I dont succeed I'llget back here once programmer arrives!

@fairestmeat - Good luck! Hope they will tell you specific recovery method, but sadly to me it looks like it's bricked beyond what recovery method can repair so it's not being invoked (unless the two methods mentioned here do not apply to this system)
You can get programmer shipped faster than what I linked on ebay, but you have to pay more $$ Plus, sucks now, ALL shipping is slow, even within countries/locally, due to the alien virus
Stay healthy! And don't worry, once you have programmer we'll fix it back to where you was at post #13 in one programming!

@GooballDiesel - yes, we must have been replying at same time. Aside from name, be sure you don't use those other actual BIOS files either (the ZAAA one etc, only ZAA2 file should be used, renamed etc - I didn't download anything you linked to check)

@fairestmeat @Lost_N_BIOS


Three days without sleep was messing with my brain.


I dug through the files some more. ZAA2.fd is 100% the correct file name (IF THIS IS THE SAME BIOS YOU ALREADY HAVE FLASHED OVER!!!)


Found the recovery file name in a raw section at offset 790h & 7A0h






Put the last file I sent you > HERE < renamed to " ZAA2.fd " on FAT/16/32 USB drive.

1. Copy the " ZAA2.fd " file to an empty FAT16/32 formatted usb stick.
2. Unplug the AC adapter.
3. Plug in the USB flash disk.
4. NOW press and hold <Fn> and <Esc>, and then plug in the AC adapter while still holding <Fn> and <Esc>.
5. Press the Power button. You can now stop holding <Fn> and <Esc>.
6. The BIOS flash should now begin, the fan will spin up and the power led should change its state.
7. After everything is done, the notebook will shut down.


IF IT STILL DOESN'T WORK TRY OTHER USB PORTS!!!

Sometimes recovery is looking for the drive in a different USB port...Try other side of laptop, etc...


***EDIT - If you still have the files yourself and @LOST_N_BIOS originally flashed over to the machine, I can check through those too to see if the FW you flashed is set up with a different recovery name....****

@GooballDiesel

Nice! I'll try in a sec...

Yes the latest biosreg is here:

Zitat

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@GooballDiesel

Nice! I'll try in a sec...

Yes the latest biosreg is here:

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@fairestmeat

Thanks. I'll take a look and see if it's the same.

***EDIT - Yes, it is EXACTLY the same in your biosreg.bin***

@GooballDiesel

So, I found a pen drive that has a led on it, and apparently when I start the machine with the keys pressed the USB flashes once, very quicky, then stops, doesn't seem to be reading anything...

Zitat von fairestmeat im Beitrag #69

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@GooballDiesel

So, I found a pen drive that has a led on it, and apparently when I start the machine with the keys pressed the USB flashes once, very quicky, then stops, doesn't seem to be reading anything...

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Or the USB is not compatible due to size, method used to format etc. Smaller, older, cheaper USB usually work best

Did you order flash programmer + SOIC8 test clip yet? If not, get on it, the sooner you order the sooner it will arrive

@Lost_N_BIOS @GooballDiesel

First of all, I'm really Sorry for the delay, got stuck with some personal stuff thèse days...

But here we go, the recovery process didnt work, I tried everything, and im really greatfull for the help!

And yes, programmer is on its way, i got it from china, so this could take a while.

Now, some doubts i had these days, the programmer works with every chip, we only have to use the correct software, right?

Yesterday just for curiosity i powered the laptop with the back cover off to see what was going on, and for my surprise, when I turn the computer on the fan starts for half a second than stops, since the fan is controled by Motherboard this is a expected behavior of a board with a bad bios, right? And in a system with a bad fan but everything else working properly the pc would start normally, it would just get really hot After a certain point, right?

And last question, I searched for my bios chip model on Google but didnt found a thing... I could not find any reference to winbond, atmel ir any of those famous models... Should i worry about?

@fairestmeat - Yes, you'll be back up and running once programmer arrives! DO NOT GET IN HURRY! Do not erase or write anything, until you've sent your BIOS file to me or someone to check to confirm it's OK/Good dump
Use 1.30 or 1.34 and Gigadevice GD25Q64. Do not use AUTO function in software, best to open software before anything connected and uncheck Erase and blank in the Auto drop-down menu, in case it accidentaly gets clicked
Once connected, read, then verify, then save, that is all.

Here is guide - [GUIDE] Flash BIOS with CH341A programmer
And here is software package - http://s000.tinyupload.com/index.php?fil...695330485827902

Yes, that is correct, about the fan/system. Your BIOS chip is Gigadevice chip

Hello @Lost_N_BIOS and everyone!

Programmer just arrived, right now i'm trying to read the chip according to GUIDE, but with no success... Using the 1.30 and 1.34 versions, the device state is "not connected", with the 1.29 version i get an error when starting app, saying the driver is not installed correctly. The other version is not in english. At the device maneger i could not find the programmer either.
I looked at the tutorial carefully, and everything is connected just fine. And i installed the driver that came with the files, got no errors...

How can I proceed?

@fairestmeat - Only use what versions I mentioned above. Both 1.30 and 1.34 are English, if not change them in the menu. In package I linked you above at #73 there is one driver, install that first and only and that's it, for all versions/software etc.
You may need to connect main battery and or PSU to the board, or you may need to remove both if connected now, all boards differ in this aspect. Also, you may need to reclamp 10+ times until it's on there perfectly, do that carefully and lightly, do not pull or slide off the clip or it will wear out quickly and not grip.
If you still cannot make any progress, show me images of your programmer, how the cable goes into it, and then your board/chip without the clip and then with the clip on, so I can see how you have everything connected.