LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

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  • spink90
    New Member
    • Sep 2025
    • 7
    • Poland

    #4001
    Originally posted by Markus1741

    Hello you can try this file good luck ....
    Thank you, that one worked(R90T1L30)
    I flashed the same BIOS to the second one(R90T1L2P), but unfortunately, the white LED on the power button still only flashes three times, and that's it.

    It's possible that this resistor is necessary.​

    Comment

    • Markus1741
      Badcaps Veteran
      • Sep 2020
      • 873
      • N/A

      #4002
      Originally posted by spink90

      Thank you, that one worked(R90T1L30)
      I flashed the same BIOS to the second one(R90T1L2P), but unfortunately, the white LED on the power button still only flashes three times, and that's it.

      It's possible that this resistor is necessary.
      Hello Oh yes, the resistance is necessary.​

      Comment

      • aminsab
        Member
        • May 2023
        • 44
        • France

        #4003
        Hey, can you generate for me the bios file for bypass bios password

        i already upload the informations P52S
        Thank you

        https://www.badcaps.net/forum/troubl...49#post3716449

        Comment

        • Markus1741
          Badcaps Veteran
          • Sep 2020
          • 873
          • N/A

          #4004
          Originally posted by aminsab
          Hey, can you generate for me the bios file for bypass bios password

          i already upload the informations P52S
          Thank you

          https://www.badcaps.net/forum/troubl...49#post3716449
          Try this files good luck ...
          Attached Files

          Comment

          • ELOGS
            New Member
            • Sep 2025
            • 2
            • Nigeria

            #4005
            Hi Good day I really need help I have a Lenovo V110 -15IKB and every time I enter BIOS I get a password and I don't know if it can be removed or reset as I just bought the laptop , I don't really understand anything here from page 1 so a step by step guide will be much appreciated. V110 -15IKB
            Last edited by ELOGS; Yesterday, 06:07 AM.

            Comment

            • ofluffy
              New Member
              • Aug 2025
              • 9
              • US

              #4006
              Originally posted by Stefan Steff

              I think RT809H is the best price/value in this category...in fact every programmer has good and bad things but to use it once or twice a year then RT809H is a good choice.
              In US you find a lot of RT809H programmers on Amazon or eBay. (ex. https://a.co/d/eUE6vcB)
              Look for RT809H not for RT809F !
              I can't find the chip I'm supposed to flash, not sure what I'm looking for. Could you send photos or any more details? Also, do I have to desolder an entire BGA chip to do this?

              Comment

              • Stefan Steff
                Badcaps Veteran
                • Mar 2024
                • 310
                • Romania

                #4007
                Originally posted by ofluffy

                I can't find the chip I'm supposed to flash, not sure what I'm looking for. Could you send photos or any more details? Also, do I have to desolder an entire BGA chip to do this?
                OK, You asked for
                Here are the details:

                The chip you are looking for is U23 (MEC1653) and you don't need to desolder the chip !
                Look on the first picture and find all soldering points for JTAG on your MB.
                The second picture is how to connect these points to your programmer. ( don't wire #RST )
                After connecting and checking all wires start your programmer software and select MEC1653 from EC List, connect the charger and read the chip it should be 290kb.
                Erase the chip and write the File back.
                Swap back the R8796 to R8797 position before restart !
                You will lose your laptop's data such as serial number, model, etc. like:
                2200: Machine Type Invalid and Serial Number are invalid.
                2201: Machine UUID is Invalid
                2202: Product Name is invalid
                2203: System configuration is invalid.
                2204: System configuration data is invalid.
                Don't worry that can be restored from the sticker (I hope is intact...if not then ..."Houston, We have a problem").
                Use ThinkPad Config Information Update Utility v1.11 (attached) :
                -Extract and run "usbfmtpw.exe" this will format your USB and copy the files over.
                (check that the files copied after format. if not manually copy them to the root of the USB).
                -Insert to laptop and boot to USB FDD it is EFI not Legacy (USB you just created).
                -Now go to main menu and choose initialize EEPROM, this clears all keys plus UUID and now the overflow error wont happen.
                -Now go 1, then use 1 to add new info, enter C0 then Enter.
                -Now enter serial and model in long form will start with 1S so (1STTTTMMMMCCSSSSSSS like described below)
                -Enter and Key is stored.
                -If you like can add more or go back and use option 3 for a few more config details. (I set my brand name there)
                -Once all info is set go to assign UUID, and say Yes.
                (once you generate the UUID you cannot edit the serials unless you initialize and do them all over again.
                -Reboot and check bios screen your info should be there no more beeps on boot.

                Product ID: TTTT-MMMMCC
                Serial#: SS-SSSSS

                TTTT = Machine Type
                MMMM = Model Type
                CC = Country Code
                SSSSSSS = Serial Number​

                ...so yours will be 1S20HGS14D00PC0PTLL4

                As a final advice before you try to flash your MEC1653:
                Check and re-check every component around the BIOS chip and try to rewrite your saved dump with the new programmer because is far,far better then the CH341A.

                Good Luck!
                Attached Files
                Last edited by Stefan Steff; Yesterday, 09:14 AM.

                Comment

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