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    bios macbook a1278 820-3115-b

    hi . i need bios dump for macbook 820-3115-b

    thx
    OKBALORD

    #2
    Re: bios macbook a1278 820-3115-b

    not tested
    Attached Files

    Comment


      #3
      Re: bios macbook a1278 820-3115-b

      Thx bro i found the bios and it work fine 100%
      this is it
      Attached Files
      OKBALORD

      Comment


        #4
        Re: bios macbook a1278 820-3115-b

        Originally posted by okbalord View Post
        hi . i need bios dump for macbook 820-3115-b

        thx
        Hi Share You A1278 820-3115-B Mac Os catalina Supported Firmware
        Attached Files

        Comment


          #5
          Re: bios macbook a1278 820-3115-b

          Hi I have tried all three dumps with a T866A programmer but unfortunately I have not been successful. If I do not uncheck "check id" option the flash does not start and if I uncheck it programming starts but after the first step it stops giving this error:

          Error! Code Address 0x000000 Buf_Val 0xFF IC_Val 0x00

          Can anyone helps me?

          Comment


            #6
            Re: bios macbook a1278 820-3115-b

            Originally posted by lzeta View Post
            Hi I have tried all three dumps with a T866A programmer but unfortunately I have not been successful. If I do not uncheck "check id" option the flash does not start and if I uncheck it programming starts but after the first step it stops giving this error:

            Error! Code Address 0x000000 Buf_Val 0xFF IC_Val 0x00

            Can anyone helps me?
            check the contract between the chip pins and the programmer ... defective bios chip ..
            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


              #7
              Re: bios macbook a1278 820-3115-b

              Originally posted by peste View Post
              check the contract between the chip pins and the programmer ... defective bios chip ..
              Thanks for you answer, the contact are ok. I'm trying to downgrade TL866A firmware, I read about problems with last firmware version. I'll let you know.
              Last edited by lzeta; 08-31-2020, 04:15 AM.

              Comment


                #8
                Re: bios macbook a1278 820-3115-b

                Hi, I've downgraded firmware to 6.70 (I'have not found 6.71) but it have the same error. I'm going to buy new eeprom.

                Comment


                  #9
                  Re: bios macbook a1278 820-3115-b

                  Hi, I give you an update. I bought a TL866II Plus and managed to flash the bios. I flashed the last posted, the one ready for catalina, everythings seems to be ok. Now I will try to install catalina.
                  Last edited by lzeta; 09-07-2020, 08:45 AM.

                  Comment


                    #10
                    Re: bios macbook a1278 820-3115-b

                    Hi, everythigs ok. I would like to ask you if is possible to write the original serial number in the posted bin files. I've seen that after flashing the serial number is not the original. Thanks.

                    Comment


                      #11
                      Re: bios macbook a1278 820-3115-b

                      Originally posted by lzeta View Post
                      Hi, everythigs ok. I would like to ask you if is possible to write the original serial number in the posted bin files. I've seen that after flashing the serial number is not the original. Thanks.
                      yes you can , use Hxd , find the SN LINE Than copy/paste

                      Comment


                        #12
                        Re: bios macbook a1278 820-3115-b

                        I will try, tnx

                        Comment


                          #13
                          Re: bios macbook a1278 820-3115-b

                          Originally posted by kamarulhasan View Post
                          Hi Share You A1278 820-3115-B Mac Os catalina Supported Firmware
                          Thanks man

                          Comment


                            #14
                            Re: bios macbook a1278 820-3115-b

                            Originally posted by okbalord View Post
                            Thx bro i found the bios and it work fine 100%
                            this is it
                            UMA BIOS! Great, working. Thanks for sharing.

                            Comment


                              #15
                              Re: bios macbook a1278 820-3115-b

                              thanks

                              Comment


                                #16
                                bios help bios 820-3115-B

                                apple A1278 "820-3115-B"

                                hi everyone i received laptop and it has issue with original bios and i don't know if it was the original bin file or not because is was repaired in other place before

                                i'll attached the file which it was in damage BIOS , don't know the status is it the original bin file or not !!!!!!!!!!!!!
                                so please i need good bios bin file

                                A1278 "820-3115-B"

                                EMC :2554

                                SN:C1MPK2YBDV30
                                Attached Files
                                Last edited by hazem3636; 01-26-2023, 11:03 AM.

                                Comment


                                  #17
                                  Re: bios macbook a1278 820-3115-b

                                  and i have one question please

                                  SN is it include in the Bios Bin file with EMC or not ??????

                                  and also the attached file in my last post need clear my region or not
                                  Last edited by hazem3636; 01-26-2023, 02:09 PM. Reason: to add more details

                                  Comment


                                    #18
                                    bios clean me region a1278 "820-3115-B"

                                    bump
                                    Last edited by SMDFlea; 01-28-2023, 04:28 AM.

                                    Comment


                                      #19
                                      Re: bios clean me region a1278 "820-3115-B"

                                      Originally posted by hazem3636 View Post
                                      bump
                                      try this
                                      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


                                        #20
                                        Re: bios macbook a1278 820-3115-b

                                        hello
                                        please i need bios dump of macbook (A1278)
                                        sn: CPFL1GGQDTY3
                                        issue: no detect internal HDD (the HDD câble has been replaced)
                                        thk you

                                        Comment

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