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    Yoga 11e 5th corrupted bios

    Hello, i have the following problem:


    No matter what i do i get reboot loop. Can't enter bios.

    From lenovo site i can download bios in FL1 format, which i don't know hot to extract.

    Here is a dump of my current bios.

    Any help would be appreciated.

    p.s. cmos battery is replaced and problem is present
    Attached Files
    Last edited by emzo; 07-07-2022, 01:56 AM.

    #2
    Re: Yoga 11e 5th corrupted bios

    Originally posted by emzo View Post
    Hello, i have the following problem:


    No matter what i do i get reboot loop. Can't enter bios.

    From lenovo site i can download bios in FL1 format, which i don't know hot to extract.

    Here is a dump of my current bios.

    Any help would be appreciated.

    p.s. cmos battery is replaced and problem is present
    post the original bios of the laptop ... and the full name and model ...
    Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

    >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

    Every donation made will go towards server fees and maintenance costs.

    Comment


      #3
      Re: Yoga 11e 5th corrupted bios

      Yoga 11e 5th Gen (Type 20LN 20LM) Laptop (ThinkPad)

      Original bios , read with SPI programmer is attached in the first post.

      Comment


        #4
        Re: Yoga 11e 5th corrupted bios

        Originally posted by emzo View Post
        Yoga 11e 5th Gen (Type 20LN 20LM) Laptop (ThinkPad)

        Original bios , read with SPI programmer is attached in the first post.
        bios extracted from the Lenovo site update.
        Attached Files
        Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

        >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

        Every donation made will go towards server fees and maintenance costs.

        Comment


          #5
          Re: Yoga 11e 5th corrupted bios

          I too have The Fl1 from Lenovo site , but mine was 9.71Mb.

          Thanks , i'll test and report in 30 min.
          Let's hope this is fo celeron processor, as i forgot to mention it.

          Comment


            #6
            Re: Yoga 11e 5th corrupted bios

            Flashed it, the problem is still present.

            keeps rebooting
            Attached Files

            Comment


              #7
              Re: Yoga 11e 5th corrupted bios

              Originally posted by emzo View Post
              Flashed it, the problem is still present.

              keeps rebooting
              not the bios is the problem..I sent you the bios on the site..you will not find a better one..take everything out of the laptop (dvd, wifi, hdd, etc) and start..see what is happening ... change the bios battery ... check another HDD ...
              Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

              >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

              Every donation made will go towards server fees and maintenance costs.

              Comment


                #8
                Hello Guys, at first big thanks for this forum, it helped me a lot of times, I successfully unlocked t460, x250, t470s, t550 - so I know the process.
                Then I got locked Yoga 11e 5th gen 20LN with procesor m3 7y30 - successfully unlocked too, for unknown reason it died after ~10 reboots but it's not the case :-).
                Then I got three locked Yoga 11e 5th but with Celeron N4100 (20LM), I thought it will work, but nooo... It is different motherboard then 11e with m3 7y30, chip is MXIC 25U6473F. Autopatcher does not show any error, but after applying patched bios it turns on, Esc key led is ON, but no display. Exactly the same on the second 11e N4100 - no display...
                I searched through this forum and found a post from iTman with the same symptoms, the answer was to find P24S08 and program it with attached dump, it was said that this version of motherboard stores password in this chip, unfortunately thred was not continued...
                I looked carefully on the mainboard and did not find this chip. I know how it should look like, I unlocked many L520, X230, T520 with SDA/SCL method.
                I'm attaching the dumps of two Yogas and photo of the mainboard; the other side of MB does not contain any larger chips. The only one chip looking similar to regular 8-pin is placed under wifi card, but it is MXIC 25L1006E...
                So did anyone solve it? Any ideas? :-)
                Attached Files

                Comment


                • peste
                  peste commented
                  Editing a comment
                  merged post..

                #9
                Re: Yoga 11e 5th corrupted bios

                had the same problem , any solution ?

                Comment


                  #10
                  Re: Yoga 11e 5th corrupted bios

                  maybe spi flash corrupted,change it or need to flash Nuvoton EC with Programmer or just initialize eeprom with lenovo U1 soft and fill serial and model
                  Last edited by mazoot; 04-18-2023, 10:50 AM.
                  Kill the state in yourself and you will be free like a wind...

                  Comment


                    #11
                    Re: Yoga 11e 5th corrupted bios

                    bios password
                    any one remove this password
                    yoga 11e 5thgen 8mb bios
                    Attached Files

                    Comment


                      #12
                      ThinkPad Yoga 11e 5th Gen LLA-1 17873-1

                      17873-1 has no display....
                      Attached backup
                      Tried to clean with no luck
                      Attached Files

                      Comment


                        #13
                        Re: ThinkPad Yoga 11e 5th Gen LLA-1 17873-1

                        Originally posted by dahnking View Post
                        17873-1 has no display....
                        Attached backup
                        Tried to clean with no luck
                        RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
                        https://www.badcaps.net/forum/showthread.php?t=103570

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

                        Comment


                          #14
                          thx for this post i just use this bios dump for my laptop with the same fault
                          error:271 and it worked great for me ! thx

                          I JUST NOTICED THAT I AM A MEMBRE SINCE 2009 !!!

                          Comment


                            #15
                            Did you ever solve this? I have the exact issue.

                            Comment


                            • peste
                              peste commented
                              Editing a comment
                              merged post...

                            #16
                            Originally posted by User0897 View Post
                            Did you ever solve this? I have the exact issue.
                            post serial number, machine type and bios backup and I can help.
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                            Comment


                              #17
                              Originally posted by cccamgeek View Post
                              thx for this post i just use this bios dump for my laptop with the same fault
                              error:271 and it worked great for me ! thx

                              I JUST NOTICED THAT I AM A MEMBRE SINCE 2009 !!!
                              The file .bin is corrupt, the motherboard 17873-1 have ic bios w25q128fvsiq of 16mb

                              Comment


                                #18
                                but it worked for me haha i just use this laptop to reply now !!
                                just i notised that there no serial number in my bios !
                                in my os linux if i change my passwor it not change mybe thue to this biose or to my OS !
                                but thedump is working !!!

                                Comment


                                  #19
                                  Lenovo yoga 11e
                                  MB:17873-1
                                  SN:R9-0V0ARA
                                  Problem: No Display and beep
                                  Attached Files

                                  Comment


                                    #20
                                    Attached bin file has display but on a reboot loop after displaying configuration changed, i have tried to do txe clean but that did not solve the issue,
                                    Lenovo Yoga 11e
                                    LLA-1, 17833-1M
                                    can't locate type and serialnumber for now.

                                    NB the bin uploaded shows 16mb but it should be 8mb for some reason i dont understand why i saved it that way but it perfectly works if written back
                                    Attached Files

                                    Comment


                                    • peste
                                      peste commented
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