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ASUS GL503VM-BI7N13 Bios password lock

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    ASUS GL503VM-BI7N13 Bios password lock

    Hello All,

    I have the aforementioned laptop that I just purchased on ebay that was listed as having a BIOS password. Sure enough, on boot it requests a password. Here's the troubleshooting steps I've tried.

    1. just entering a blank password as I've seen where if it's an admin password instead of a user password, I can enter the BIOS as user and still enter Windows. I still receive Invalid Password, I'm assuming this means it's actually a user password or both user and admin password.

    2. I've removed both the main battery and CMOS battery, disconnected from power and held the power button down for about 1 minute. Hooking up only the power adapter, I turn the laptop back on, it goes through 2 reboots once it reaches the ASUS ROG logo, then on the 3rd boot, requests a password again.

    3. I tried pressing Alt+R since I read on some of these, it will generate a date code that can be decoded, this did not work and just entered an "r" in the password entry.

    I'm assuming at this point that the passwords are stored separately in an EEPROM chip or something. I don't have any tools at the moment for doing any kind of flashes or anything, but depending on the difficulty and cost, I wouldn't mind purchasing one to attempt a flash. I investigated simply replacing the main board, but those cost around 600$ from what I've seen and that would defeat the purpose since it would bring the cost of the laptop back to it's normal asking price (I paid 300$ for it).

    Does anyone have any ideas or suggestions for me to try to get this reset, other than return it to the seller lol?

    #2
    Re: ASUS GL503VM-BI7N13 Bios password lock

    Small Update.

    I've been doing some more research on the topic and I believe I've found my BIOS chip near the WIFI card. It's labeled mxic mx25l6473f.

    I've been reading that flashing can be possible with a CH341A programmer. This is pretty new territory for me so I'm not sure what I'm proposing is possible for this situation or if it would even work.

    Comment


      #3
      Re: ASUS GL503VM-BI7N13 Bios password lock

      Try to make a backup of the bios using Flash programming tool.

      Use this at the command line

      FPTW64.exe -D bios.bin

      If it makes a backup without any errors post it here and someone will have a look at it
      Attached Files
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      Comment


        #4
        Re: ASUS GL503VM-BI7N13 Bios password lock

        Originally posted by SMDFlea View Post
        Try to make a backup of the bios using Flash programming tool.

        Use this at the command line

        FPTW64.exe -D bios.bin

        If it makes a backup without any errors post it here and someone will have a look at it
        I'm assuming I'd need to obtain this CH341A programming tool since right now I don't really have any access to the laptop's bios? I think I get the gist of how the programmer works since I used a flasher to downgrade a PS3 a few years back and the concept seems similar.

        Comment


          #5
          Re: ASUS GL503VM-BI7N13 Bios password lock

          Originally posted by birdboy385 View Post
          I'm assuming I'd need to obtain this CH341A programming tool since right now I don't really have any access to the laptop's bios? I think I get the gist of how the programmer works since I used a flasher to downgrade a PS3 a few years back and the concept seems similar.
          Try FPT first.It has an AMI bios,it might be possible to decode the password.If you can`t make a backup with FPT then yes you`ll need a programmer.The CH341A should do the job.If you buy the black PCB version its best to modify it before use,some of them have 5V on the data lines and need a wire soldering to make it 3.3V. The supplied software is shit,use NeoProgrammer,Colibri or ASProgrammer instead, theyre all posted here on the forum.
          .
          Last edited by SMDFlea; 12-04-2021, 01:08 PM.
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment


            #6
            Re: ASUS GL503VM-BI7N13 Bios password lock

            Hmmm I guess I'm confused as to how I'd use it since I can't boot into windows or seemingly anything for that matter?
            Last edited by birdboy385; 12-04-2021, 01:12 PM.

            Comment


              #7
              Re: ASUS GL503VM-BI7N13 Bios password lock

              Originally posted by birdboy385 View Post
              Hmmm I guess I'm confused as to how I'd use it since I can't boot into windows or seemingly anything for that matter?
              I`m confused,at post #1 you said "I can enter the BIOS as user and still enter Windows"
              All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

              Comment


                #8
                Re: ASUS GL503VM-BI7N13 Bios password lock

                My apologies, my wording may have been confusing on my original post. When I mentioned where I've noticied people have been able to enter a blank password to get into Windows, that doesn't work for me.

                Comment


                  #9
                  Re: ASUS GL503VM-BI7N13 Bios password lock

                  Originally posted by birdboy385 View Post
                  My apologies, my wording may have been confusing on my original post. When I mentioned where I've noticied people have been able to enter a blank password to get into Windows, that doesn't work for me.
                  Its ok, just buy the programmer and post the backup here in a zip or rar.

                  CH341A volt mod videos

                  https://www.youtube.com/watch?v=-ln3VIZKKaE
                  https://www.youtube.com/watch?v=HwnzzF645hA

                  NeoProgrammer https://www.badcaps.net/forum/attach...7&d=1626459940
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                  Comment


                    #10
                    Re: ASUS GL503VM-BI7N13 Bios password lock

                    Originally posted by SMDFlea View Post
                    Its ok, just buy the programmer and post the backup here in a zip or rar.

                    CH341A volt mod videos

                    https://www.youtube.com/watch?v=-ln3VIZKKaE
                    https://www.youtube.com/watch?v=HwnzzF645hA

                    NeoProgrammer https://www.badcaps.net/forum/attach...7&d=1626459940
                    Sounds like a plan. Thanks for that info. I'd hate to go into this immediately potentially frying my BIOS chip.

                    Comment

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