bios for lenovo y540-15irh (81sx)

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  • hoaca388
    Badcaps
    • Jan 2022
    • 11794
    • Socialist Republic of Vietnam

    #61
    Originally posted by CirebeaTiberiu

    File open error
    File bios is ok.


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    • CirebeaTiberiu
      Member
      • Aug 2021
      • 18
      • Romania

      #62
      Originally posted by CirebeaTiberiu

      File open error
      I can't open this file in RT809F
      Attached Files

      Comment

      • JelloC19
        New Member
        • Apr 2024
        • 3
        • Deutschland

        #63
        Greetings from Germany, thanks to this thread i was able to fix my Laptop with the bios posted in here (Version 44ww). In my first attempt to downgrade with the normal installer i bricked my device, now i want to use the CH341a and need to shrink the bin file of the installer so that i can write to the chip manually. I want to install the Version 27WW. and was hoping some could shrink it for me. Thanks in Advance.
        Attached Files

        Comment

      • JelloC19
        New Member
        • Apr 2024
        • 3
        • Deutschland

        #64
        Oh of course SMDFlea her is my model number "lenovo legion y540-17irh" and my Serial number "PF1VZCGZ"

        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 20977
          • UK

          #65
          Originally posted by JelloC19
          Oh of course SMDFlea her is my model number "lenovo legion y540-17irh" and my Serial number "PF1VZCGZ"
          Post the corrupt backup as well please
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment

          • JelloC19
            New Member
            • Apr 2024
            • 3
            • Deutschland

            #66
            SMDFlea Okay its not corrupted though, i want to downgrade so that undervolting is unlocked again. And thank you very much for your help! ^^
            Attached Files

            Comment

            • winix
              New Member
              • May 2023
              • 5
              • Nigeria

              #67
              I need help with my legion Y540, it powers on with keyboard light and it's also charging.
              I have programmed eventually all the bios file in this thread, each giving different symptoms

              Comment

              • peste
                Super Moderator
                • Dec 2016
                • 12859
                • ROMANIA

                #68
                Originally posted by winix
                I need help with my legion Y540, it powers on with keyboard light and it's also charging.
                I have programmed eventually all the bios file in this thread, each giving different symptoms

                post the original bios of the laptop even if it is corrupted,​post the S/N,the motherboard model, the full name and model of the laptop,etc.
                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

                • Rysiu001
                  New Member
                  • Apr 2022
                  • 3
                  • Poland

                  #69
                  Originally posted by peste
                  Re: bios for lenovo y540-15irh (81sx)



                  bios extracted from the Lenovo site update
                  DMI 632000 - 633FFF

                  I changed dmi and the laptop now does not turn on in any bios. Previously, it didn't turn on with the button, only after plugging in the power supply
                  Click image for larger version

Name:	dataurl629094.png
Views:	157
Size:	365 Bytes
ID:	3481940

                  Comment

                  • peste
                    Super Moderator
                    • Dec 2016
                    • 12859
                    • ROMANIA

                    #70
                    Originally posted by Rysiu001


                    I changed dmi and the laptop now does not turn on in any bios. Previously, it didn't turn on with the button, only after plugging in the power supply
                    Click image for larger version  Name:	dataurl629094.png Views:	0 Size:	365 Bytes ID:	3481940
                    you wrote the DMI information in another interval... if you write it correctly it will work.. try again.. make a copy of the original bios before writing..
                    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

                    • Rysiu001
                      New Member
                      • Apr 2022
                      • 3
                      • Poland

                      #71
                      Originally posted by peste

                      you wrote the DMI information in another interval... if you write it correctly it will work.. try again.. make a copy of the original bios before writing..

                      I changed these sections
                      Click image for larger version

Name:	dataurl197368.png
Views:	156
Size:	365 Bytes
ID:	3482294
                      Attached Files

                      Comment

                      • peste
                        Super Moderator
                        • Dec 2016
                        • 12859
                        • ROMANIA

                        #72
                        Originally posted by Rysiu001


                        I changed these sections
                        Click image for larger version

Name:	dataurl197368.png
Views:	156
Size:	365 Bytes
ID:	3482294
                        maybe you didn't solder the bios chip well.. something happened, maybe you blew some resistance around the chip with the hot air from the blower.. check..
                        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

                        • Rysiu001
                          New Member
                          • Apr 2022
                          • 3
                          • Poland

                          #73
                          Originally posted by peste

                          maybe you didn't solder the bios chip well.. something happened, maybe you blew some resistance around the chip with the hot air from the blower.. check..

                          It's hard to say because I don't have boardview,
                          should your bios work without any changes?
                          Click image for larger version

Name:	dataurl953613.png
Views:	149
Size:	365 Bytes
ID:	3482366
                          Click image for larger version

Name:	dataurl847938.png
Views:	158
Size:	365 Bytes
ID:	3482365

                          Comment

                          • peste
                            Super Moderator
                            • Dec 2016
                            • 12859
                            • ROMANIA

                            #74
                            Originally posted by Rysiu001


                            It's hard to say because I don't have boardview,
                            should your bios work without any changes?
                            Click image for larger version  Name:	dataurl953613.png Views:	0 Size:	365 Bytes ID:	3482366
                            Click image for larger version  Name:	dataurl847938.png Views:	0 Size:	365 Bytes ID:	3482365
                            yes... you don't make any more changes... it works even without DMI... but you will get a message to this effect every time you turn on the laptop... remove the bios chip from the board before writing... this is if the problem is the bios and you write it correctly..here is a video as an example...https://www.youtube.com/watch?v=DWWigscuQDY

                            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

                            • krogs214
                              Senior Member
                              • Sep 2017
                              • 81
                              • Philippines

                              #75
                              Hi can you guys clear me this bios
                              Lenovo Y540 15irh
                              Sn no. PF149W79
                              Attached Files

                              Comment

                              • shiyab
                                Badcaps Legend
                                • Sep 2023
                                • 1483
                                • india

                                #76
                                Originally posted by krogs214
                                Hi can you guys clear me this bios
                                Lenovo Y540 15irh
                                Sn no. PF149W79
                                hi try new file
                                Attached Files

                                Comment

                                • krogs214
                                  Senior Member
                                  • Sep 2017
                                  • 81
                                  • Philippines

                                  #77
                                  Originally posted by shiyab

                                  hi try new file
                                  thank you

                                  Comment

                                  • underbreak
                                    Member
                                    • Aug 2023
                                    • 12
                                    • France

                                    #78
                                    Hi everyone ! I buy recently a Y540-15IRH 81sx for gaming, was perfectly fine for month, then i updated everything with Vantage and they apparently updated the bios. Unfortunatly, after restart, i can't get any post on display, it's black, no backlight.
                                    The keyboard light up for 5 sec with fan at low speed, then stop, after 60 sec the laptop turn fan to max speed, i can heard a this time the windows boot intro sound, then it shut down after 10 sec.
                                    I already tryed to reflash the bios via a CH341a with almost all bios i found of this model on the forum, but no sign of life...
                                    I put here my old dump, if anyone can get me a clean bios that work, i would be very grateful ! TY
                                    Attached Files

                                    Comment

                                    • volinakis
                                      Badcaps Legend
                                      • Jan 2021
                                      • 2734
                                      • N/A

                                      #79
                                      Originally posted by underbreak
                                      Hi everyone ! I buy recently a Y540-15IRH 81sx for gaming, was perfectly fine for month, then i updated everything with Vantage and they apparently updated the bios. Unfortunatly, after restart, i can't get any post on display, it's black, no backlight.
                                      The keyboard light up for 5 sec with fan at low speed, then stop, after 60 sec the laptop turn fan to max speed, i can heard a this time the windows boot intro sound, then it shut down after 10 sec.
                                      I already tryed to reflash the bios via a CH341a with almost all bios i found of this model on the forum, but no sign of life...
                                      I put here my old dump, if anyone can get me a clean bios that work, i would be very grateful ! TY
                                      post serial no, according to rules of this forum
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                                      https://www.badcaps.net/donate/
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                                      Comment

                                      • underbreak
                                        Member
                                        • Aug 2023
                                        • 12
                                        • France

                                        #80
                                        Hey, Oups my bad here he is : PF2JYVLN

                                        Comment

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