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ACER Veriton Z4660G AIO bios help

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    ACER Veriton Z4660G AIO bios help

    I have an Acer veriton Z4660G all in one pc,

    Model: Z4660G-I5850H1 (VZ4660G_W)

    Need bios dump and schematic would save my life !

    to make a long story short I bought this all in one used
    with a broken lcd, with the objective of making a custom desktop out of it

    ,it was working perfectly but unfortunately this motherboard default settings does not show post or bios on external screen, I tried everything and every cable/port/screen also ext gpu or internal i also tried to navigate blindly because I could access bios without seeing so I looked a youtube video of the same model bios but was unable.

    I ended up flashing many different version of the proper bios from windows, then it would auto apply on reboot or I'd have to press enter up enter...i was wishing the default configuration would show bios on external vga...in the end I ended up modifying the acer bios installing script just a little so it would "force ignore previous configuration" after that it bricked it,

    but the computer would still power on...fast foward to yesterday I bought a ch134 programmer with sop8, dumped the bios on the chip without headers (I think), then flashed some virgin acer bios rom file from acer original site, it was a .CAP file I renamed to. Rom
    Succes with asprogrammer...verified twice.

    Now it won't power on.no lights nothing. At all. It has power on the mobo when plugged however and I verified everything else 10x cleared cmos, did with cr2032 on or off, power cable/supply on and off did the flash with 3 different programs, one of them asprogrammer 2.0.1.3 fix works,* the hex file seems always okay its a perfect copy it verify and it holds there for 24 hours and more.

    I am a beginner In bios flashing so I finally realised its likely not booting because I'm missing the Intel me and serial/Mac and i think the lower level boot "sequence" from the bios.

    Upon more verification the dump I made first is corrupted.
    And missing headers parts but partially ok.

    I've been reading online trying to find any source for a unofficial dump of this bios without succes, as soon as I get it to boot I'm going to flash back an original from acer

    I've seen some people seem to take original bios file and add stuff to it with an hex editor, like region or Intelme info, could somebody point me in the right direction to learn more about this ?! Or to a dump file

    Other question if somebody has a dump can you please pre-enable bios on external monitor or ext gpu if possible I would greatly appreciate

    Also I have one last question,if somebody has the schematics I would really appreciate there is a small switch on the motherboard beside the usb-C port called WPI im.wondering what's is the purpose of that and also an unpopulated hdmi port. Many thanks !

    #2
    Re: ACER Veriton Z4660G AIO bios help

    Originally posted by Wg188 View Post
    Need bios dump and schematic would save my life !
    Do you have a programmer to dump the bios ? ,if so how are you connecting to the chip and what model is programmer and software version.

    By the way,bios and schematic requests are seperate so make a new thread just for the schematic please
    .
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment


      #3
      Re: ACER Veriton Z4660G AIO bios help

      Yes I have a ch134 programmer, the winbond chip is currently desoldered from the board I'm connecting to it via an adapter not the sop8 alligator clips.

      I already dumped the original bios before formating the chip and flashing new acer website bios.

      But i did so with afuwin from windows and my original dump is missing headers and Intel me and possibly boot code as I was not aware of the existence of those in bios files before a few days ago. And Ok I will do another thread for the schematics, many thanks

      Comment


        #4
        Re: ACER Veriton Z4660G AIO bios help

        Software version of programmer is called asprogrammer 2.0.1.3 fix

        Comment


          #5
          Re: ACER Veriton Z4660G AIO bios help

          Originally posted by Wg188 View Post
          Software version of programmer is called asprogrammer 2.0.1.3 fix
          Ok post your bios backup here in a zip or rar attachment.
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment


            #6
            Re: ACER Veriton Z4660G AIO bios help

            Originally posted by SMDFlea View Post
            Ok post your bios backup here in a zip or rar attachment.
            Here it is, if it's not good I have another one possibly but it's exactly the same size. Thanks alot for your help
            Attached Files

            Comment


              #7
              Re: ACER Veriton Z4660G AIO bios help

              If nobody can help with the bios dump, I'd appreciate it alot if somebody could point me in the right direction on what and how to retrieve and fix the missing parts of my bios, I'm totally lost in regards to bios "modding"

              Comment


                #8
                Re: ACER Veriton Z4660G AIO bios help

                Originally posted by Wg188 View Post
                If nobody can help with the bios dump, I'd appreciate it alot if somebody could point me in the right direction on what and how to retrieve and fix the missing parts of my bios, I'm totally lost in regards to bios "modding"
                Post your original backup or one made with the CH341A .Afuwin can`t backup the whole bios due to the flash descriptor locks, it can only backup the region.
                .
                Last edited by SMDFlea; 06-19-2023, 12:32 PM.
                All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                Comment


                  #9
                  Re: ACER Veriton Z4660G AIO bios help

                  Originally posted by SMDFlea View Post
                  Post your original backup or one made with the CH341A .Afuwin can`t backup the whole bios due to the flash descriptor locks, it can only backup the region.
                  .
                  Unfortunately it's the only backup I have, I wasn't aware of the flash descriptor lock before I formated the winbond bios chip. I did try to back it up one more time with the ch341a before formating but the file is corrupted and show 0 bytes because It wasn't properly connected or the programmer was sending 5v instead of 3.3v(another issue I wasn't aware at first)...

                  Is there possibly a generic bios that could allow me to boot into windows even only once and then update an official acer file from windows?

                  Thanks alot.

                  Comment


                    #10
                    Re: ACER Veriton Z4660G AIO bios help

                    On this machine hdd I found a 13mb file in Acer(D/windows/firmware wich has the same name as the bios. It is a .cap file and dates from before I owned this pc. Could this possibly be helpful. I'm not that knowledgeable but I ran MEanalyser and it stated there was no management engine present.

                    Comment


                      #11
                      Re: ACER Veriton Z4660G AIO bios help

                      Acer Veriton Z4660G VBUZZ 17575-1
                      Attached Files

                      Comment


                        #12
                        Re: ACER Veriton Z4660G AIO bios help

                        Acer Veriton Z4660G VBUZZ 17575-1
                        Attached Files

                        Comment

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