Thinkpad Yoga LA-A341P BIOS

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  • Maxpower3
    Bad Veteran
    • Feb 2018
    • 1226
    • France

    #21
    Re: Thinkpad Yoga LA-A341P BIOS

    shunt work only on LA-A341P
    for LA-A342P desolder EC
    look here
    https://www.badcaps.net/forum/showth...light=LA-A342P

    bios or 24rf08 bricked may be
    what pins did you short circuit?

    Comment

    • m3troid
      New Member
      • Aug 2022
      • 4
      • georgia

      #22
      Re: Thinkpad Yoga LA-A341P BIOS

      Originally posted by Maxpower3
      shunt work only on LA-A341P
      for LA-A342P desolder EC
      look here
      https://www.badcaps.net/forum/showth...light=LA-A342P

      bios or 24rf08 bricked may be
      what pins did you short circuit?
      I am on LA-A341P even though the image does not show it out, i shorted SCL & SDA

      boot problem started after shunt so my assumption is the chip is fried, any sources for aquiring a new one ? i have 0 experience re-soldering but makes for a entertaining attempt atleast if a replacement chip is affordable

      EDIT: tested both u2022 and u8 with multimeter and only things conductive are both GND so presumably both chips are fried for some reason
      Last edited by m3troid; 09-20-2022, 09:25 PM.

      Comment

      • pingaroon
        Senior Member
        • Nov 2019
        • 121
        • uk

        #23
        Re: Thinkpad Yoga LA-A341P BIOS

        Many thanks - it works - I had to short pins 5 and 6 before the backlight came on, and then F1 let me in. On mine, it's a p24s08a

        Originally posted by Maxpower3
        LA-A341P : 2x bios and 24rf08 + EC
        LA-A342P : 2x bios and EC

        the 24rf08 or p24s08a reads very well, this eprom is not locked
        or bypass password with shunt on 24rf08 between scl and sda when backlight come and F1 to enter setup.

        Comment

        • umarjaan
          Umar Jaan
          • Jun 2023
          • 10
          • Pakistan

          #24
          Originally posted by lharvie
          Re: Lenovo Thinkpad Yoga 14 - BIOS Dump - TPM Security

          I found this for anyone else out there you might need it
          Working perfect thank you

          Comment

          • apostsamking
            Senior Member
            • Dec 2017
            • 117
            • Ghana

            #25
            Ps can anyone help me bios unlock for my Lenovo yoga 12. ZIPS3 LA-A342P rev 1.0 S/N MP-09MD97 15/09

            Comment


            • SMDFlea
              SMDFlea commented
              Editing a comment
              Off topic, the thread is for the LA-A341P .Why don`t you read the whole topic, see post 8 unlock it yourself..
          • jimore
            Senior Member
            • Nov 2020
            • 177
            • mexico

            #26
            LA-A341P REV 1A ORKING CORI3 4THGEN.zip
            Originally posted by Maxpower3
            Re: Thinkpad Yoga LA-A341P BIOS

            shunt work only on LA-A341P
            for LA-A342P desolder EC
            look here
            https://www.badcaps.net/forum/showth...light=LA-A342P

            bios or 24rf08 bricked may be
            what pins did you short circuit?
            UPLOADED working bios:
            Attached Files

            Comment

            • Time
              Member
              • Jun 2022
              • 15
              • Nigeria

              #27
              Originally posted by Ariu
              Re: Thinkpad Yoga LA-A341P BIOS

              already done it for the others that need it!_!
              works for me thanks man

              Comment

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