Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

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  • volinakis
    Badcaps Legend
    • Jan 2021
    • 2810
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    #1

    Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

    it came with no display, power button blinking all the time. I did read bios and saw it has some strange bytes in Padding area, I thought is a bios bug so I wrote a new bios extracted from lenovo site. All was ok, after few days laptop came back with same symptoms, i did read again bios and noticed Padding area having again strange bytes. Maybe someone can help me understand why this is happening, what can cause this strange thing.thank you.
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    • Haker5
      Banned
      • Mar 2015
      • 65
      • internet
      #2
      Re: Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

      try and raport
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        • volinakis
          Badcaps Legend
          • Jan 2021
          • 2810
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          #3
          Re: Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

          Originally posted by Haker5
          try and raport
          thank you but I have a working bios, the problem is that for sure if I will write again after few days will do the same thing, I want to understand why is happening that strange thing.
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            • hardware1
              Badcaps Legend
              • Sep 2021
              • 2943
              • N/A
              #4
              Re: Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

              Originally posted by volinakis
              it came with no display, power button blinking all the time. I did read bios and saw it has some strange bytes in Padding area, I thought is a bios bug so I wrote a new bios extracted from lenovo site. All was ok, after few days laptop came back with same symptoms, i did read again bios and noticed Padding area having again strange bytes. Maybe someone can help me understand why this is happening, what can cause this strange thing.thank you.
              It's not a strange bytes, if you mean the data between (0-3000h) it's the DMI of this Lenovo Laptop, it will be empty in the Virgin BIOS so you will need to move it from the Original dump to the New one to keep the DMI save.
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                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 21472
                  • UK
                  #5
                  Re: Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

                  Originally posted by hardware1
                  It's not a strange bytes, if you mean the data between (0-3000h) it's the DMI of this Lenovo Laptop, it will be empty in the Virgin BIOS so you will need to move it from the Original dump to the New one to keep the DMI save.
                  The code before that LDBG is probably Debug code ? ,not sure.

                  Edit: LCFC debug

                  .
                  Last edited by SMDFlea; 07-03-2023, 02:31 PM.
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                    • hardware1
                      Badcaps Legend
                      • Sep 2021
                      • 2943
                      • N/A
                      #6
                      Re: Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

                      Originally posted by SMDFlea
                      The code before that LDBG is probably Debug code ? ,not sure.

                      .
                      I really don't know what this code is, but I think it's used to arrange the DMI, because I can see it mentioned many times between the encrypted DMI.
                      I always copy the data from "LDBG" to the end of the DMI (no matter what length it was, 2000h, 3000h or 4000h) and it's always working fine.

                      I'm also wondering about the Windows Key because I can't see it in plain text for these Lenovo devices.
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                      Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
                      all donations are welcome,
                      see the donate button at the bottom of the page, or
                      >>>>>                       click on this link to donate via PayPal. <<<<<
                      Every donation made will go towards server fees and maintenance costs.
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                        • volinakis
                          Badcaps Legend
                          • Jan 2021
                          • 2810
                          • N/A
                          #7
                          Re: Lenovo IdeaPad 3 15ARE05 strange BIOS behavior

                          Originally posted by hardware1
                          It's not a strange bytes, if you mean the data between (0-3000h) it's the DMI of this Lenovo Laptop, it will be empty in the Virgin BIOS so you will need to move it from the Original dump to the New one to keep the DMI save.
                          I think DMI is between 1000-2FFF - usually i search for "LENV" to find DMI data.
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