SONY PCG 7151M Bios needed

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  • Esse
    Badcaps Veteran
    • Apr 2014
    • 317
    • TOGO

    #1

    SONY PCG 7151M Bios needed

    mb:MBX-195 M791 Rev:1.0
    Old bios:
    Attached Files
  • rioreno
    Badcaps Veteran
    • Feb 2009
    • 540
    • Indonesia

    #2
    Re: SONY PCG 7151M Bios needed

    Originally posted by Esse
    mb:MBX-195 M791 Rev:1.0
    Old bios:
    try this, confirm working or not
    Attached Files

    Comment

    • Esse
      Badcaps Veteran
      • Apr 2014
      • 317
      • TOGO

      #3
      Re: SONY PCG 7151M Bios needed

      this does not work for me
      mine is locked
      any help please

      Comment

      • rioreno
        Badcaps Veteran
        • Feb 2009
        • 540
        • Indonesia

        #4
        Re: SONY PCG 7151M Bios needed

        Originally posted by Esse
        this does not work for me
        mine is locked
        any help please
        so the password is not store on this bios chip...you must tryng to fnd eeprom (24Cxx) to release the password...

        Comment

        • Esse
          Badcaps Veteran
          • Apr 2014
          • 317
          • TOGO

          #5
          Re: SONY PCG 7151M Bios needed

          With your bios the machine does not power on.i put the old one and the machine power on with still bios password

          Comment

          • Esse
            Badcaps Veteran
            • Apr 2014
            • 317
            • TOGO

            #6
            Re: SONY PCG 7151M Bios needed

            i think the password is inside the bios chip because i get different hash code when i put three wrong password

            Comment

            • Esse
              Badcaps Veteran
              • Apr 2014
              • 317
              • TOGO

              #7
              Re: SONY PCG 7151M Bios needed

              any help please

              Comment

              • rioreno
                Badcaps Veteran
                • Feb 2009
                • 540
                • Indonesia

                #8
                Re: SONY PCG 7151M Bios needed

                Originally posted by Esse
                any help please
                just to make sure this is vaio core2duo notebook? ddr2 ram?

                so you can try my trick?

                1. prepare 1 sodim ddr2,
                2. focus at ram eeprom controller it must be 8pin...get scl pin and sda pin...
                3. make a good soldered cable its about 15-20 cm, from that pins (sda & scl )
                4. now you insert that sodim, with ac plug, no battery..switch on your notebook with old bios , press f2 it will be ask for the password
                5. now you short that 2 cable sda and scl,
                6. when you keep short that cables, ENTER blank Password

                you will be in bios menu now...

                7. After You get to bios menu release the sda and scl cable.
                8. Find the security Menu, where you get change password menu , it will be ask current password ..short again sda & scl cable...now you can enter new password,
                8.when you will enter new password and verify new password release cable again
                9. now you can save your bios...

                hope this will be help you....

                Comment

                • Esse
                  Badcaps Veteran
                  • Apr 2014
                  • 317
                  • TOGO

                  #9
                  Re: SONY PCG 7151M Bios needed

                  please i dont get well the step 2;can you give more explanation

                  Comment

                  • rioreno
                    Badcaps Veteran
                    • Feb 2009
                    • 540
                    • Indonesia

                    #10
                    Re: SONY PCG 7151M Bios needed

                    Originally posted by Esse
                    please i dont get well the step 2;can you give more explanation
                    make a wire solder to pin sda and pin scl , about 15-20cm
                    Attached Files

                    Comment

                    • Esse
                      Badcaps Veteran
                      • Apr 2014
                      • 317
                      • TOGO

                      #11
                      Re: SONY PCG 7151M Bios needed

                      is there any difference the first step and the second one,please

                      Comment

                      • rioreno
                        Badcaps Veteran
                        • Feb 2009
                        • 540
                        • Indonesia

                        #12
                        Re: SONY PCG 7151M Bios needed

                        Originally posted by Esse
                        is there any difference the first step and the second one,please
                        no, just to make sure use ram has been tested for this notebook before you mod soldercable

                        Comment

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