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Bios request for L15 Gen 4

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    #1

    Bios request for L15 Gen 4

    Hello Guys, I am looking for a working bios for a L15 Gen 4 ThinkPad) - Type 21H4

    Machine type model: 21H4000TLM

    I lost my backup and couldn't retrieve it, it's blank now since it reads all FFFFs, can anyone help me please?
    Last edited by ChrsOvkll; 06-09-2024, 07:07 PM.
    Tags: bios, bios recovery, lenovo
    #2
    Originally posted by ChrsOvkll View Post
    Hello Guys, I am looking for a working bios for a L15 Gen 4 ThinkPad) - Type 21H4
    Machine type model: 21H4000TLM
    I lost my backup and couldn't retrieve it, it's blank now since it reads all FFFFs, can anyone help me please?
    Post the laptop serial number https://www.badcaps.net/forum/troubl...before-posting

    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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      #3
      Apologies, here it is: PW07TSR2

      Comment

        #4
        Originally posted by ChrsOvkll View Post
        Apologies, here it is: PW07TSR2
        Why does the chip read reads all FFFFs ,did you erase the chip.What model is your programmer and software version.Are you using a clip.
        All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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          #5
          Thank you for replying, yes I tried to flash it and after it didn't work I tried a few more times, accidentally erased it and the backup got lost on a wipe, careless on my part, After I read it, since it was erased, it showed all FFFFs, I have a I am using AsProgrammer version 2.0.4, I wanted to get another working bios to flash it and have it running as it was before.

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            #6
            Oh, and I am using CH341A and clip

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              #7
              Originally posted by ChrsOvkll View Post
              Oh, and I am using CH341A and clip
              Really started now (PW07TSR2) 03.2024 you won't find a BIOS for this unless someone would download something like that from their notebook.
              What was the reason for reading the BIOS with this bad CH341A junk?

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                #8
                Originally posted by Markus1741 View Post

                Really started now (PW07TSR2) 03.2024 you won't find a BIOS for this unless someone would download something like that from their notebook.
                What was the reason for reading the BIOS with this bad CH341A junk?
                Onsite warranty for 3 years. Hmmm

                Click image for larger version Name: Warranty.jpg Views: 183 Size: 48.5 KB ID: 3294568
                All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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                  #9
                  I bought it from a girl in FB maktplc, she advertised as "it turns on but locked, for spare parts" it was an unlock project, it is locked still, but it will not turn on because I found out , after reading many threads, I screwed with the programming in the PC dontroller chip, I had some free time and I thought it would be a good way to spend it, but project is not going well at all. I guess I have to wait and see if anyone has same model and is willing to upload a dump of the EC chip

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