Samsung "MU" series (UN, UA, UExxMUxxxx) fault dump IC1604 25Q40...

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  • patii
    New Member
    • Aug 2025
    • 1
    • Norwegia

    #241
    ue70ru6025k lcd cv-GN070HGJV1H BN41-2703A HELP

    Comment

    • neighbor
      New Member
      • Sep 2025
      • 1
      • romania

      #242
      Hello, here is a UE50MU7000 with BN41-02568B (after an electricity jump):
      - no stand by led light
      - power supply has 9v outputs which go to mainboard
      - without mainboard connected backlight works fine
      - without backlight connected still no stand by led light
      - dumped 24C512, 25Q40, 25Q80 (through CH341A programmer before finding this site), and flashed backup data from a UE40MU6102KXXH (which has same main board), this did not fix anything

      After reading this thread, found out there is a specific way of flashing 25Q40, so I've placed all original backups back to their chips (also tried to restore header data in 25Q40, but it did not work)
      and while doing what is in guide in 4th post, found out that QE is impossible to check. (edit: in NeoProgrammer V2.2.0.10 it's possible)

      Is there also a special way of flashing 24C512 and 25Q80 like 25Q40 requires?
      Can you please take a look at these files and see if there is anything wrong?
      Can send a thanks thru PayPal if it will fix this issue.
      Attached Files

      Comment

      • lotas
        Badcaps Legend
        • Jan 2016
        • 4744
        • Russia

        #243
        Originally posted by neighbor
        Hello, here is a UE50MU7000 with BN41-02568B (after an electricity jump):
        - no stand by led light
        - power supply has 9v outputs which go to mainboard
        - without mainboard connected backlight works fine
        - without backlight connected still no stand by led light
        - dumped 24C512, 25Q40, 25Q80 (through CH341A programmer before finding this site), and flashed backup data from a UE40MU6102KXXH (which has same main board), this did not fix anything

        After reading this thread, found out there is a specific way of flashing 25Q40, so I've placed all original backups back to their chips (also tried to restore header data in 25Q40, but it did not work)
        and while doing what is in guide in 4th post, found out that QE is impossible to check. (edit: in NeoProgrammer V2.2.0.10 it's possible)

        Is there also a special way of flashing 24C512 and 25Q80 like 25Q40 requires?
        Can you please take a look at these files and see if there is anything wrong?
        Can send a thanks thru PayPal if it will fix this issue.
        Try it, don't forget about the register status (0x88, 0x42) after writing my dump.
        Attached Files

        Comment

        • ladharimohamed2
          Member
          • Jul 2021
          • 45
          • tunisia

          #244
          Hi , i have a samsung model ua32k5100 that has its memory image corrupted.
          IC 805 W25Q40CL.
          Board name BN94-10869Q.
          i have tried several images the best ones are when tv comes with samsung logo for 1 second and then reboot and stays black.
          original problem with my own image that tv wont turn on and all voltages are ok and the board is ok
          can someone pls try to fix my original dump or give me one.
          original dump attached .
          Thanks a lot.
          Attached Files

          Comment

          • lotas
            Badcaps Legend
            • Jan 2016
            • 4744
            • Russia

            #245
            Originally posted by ladharimohamed2
            Hi , i have a samsung model ua32k5100 that has its memory image corrupted.
            IC 805 W25Q40CL.
            Board name BN94-10869Q.
            i have tried several images the best ones are when tv comes with samsung logo for 1 second and then reboot and stays black.
            original problem with my own image that tv wont turn on and all voltages are ok and the board is ok
            can someone pls try to fix my original dump or give me one.
            original dump attached .
            Thanks a lot.
            Try.
            Attached Files

            Comment

            • ladharimohamed2
              Member
              • Jul 2021
              • 45
              • tunisia

              #246
              Originally posted by lotas

              Try.
              Hi,
              it is doing the same with my image, red lignt flashing for several seconds then samsung logo appears then the TV powers off the led stays on then reboots and doing the same thing. maybe is something else ?
              thanks for your help

              Comment

              • lotas
                Badcaps Legend
                • Jan 2016
                • 4744
                • Russia

                #247
                Originally posted by ladharimohamed2

                Hi,
                it is doing the same with my image, red lignt flashing for several seconds then samsung logo appears then the TV powers off the led stays on then reboots and doing the same thing. maybe is something else ?
                thanks for your help
                Anything could be wrong, for example, the firmware in the NAND or in the eeprom, is your backlight OK?

                Comment

                • ladharimohamed2
                  Member
                  • Jul 2021
                  • 45
                  • tunisia

                  #248
                  Originally posted by lotas
                  Anything could be wrong, for example, the firmware in the NAND or in the eeprom, is your backlight OK?
                  yes, the samsung logo shows off for several seconds with backlight on then the logo goes off and backlight stays on for some seconds then the tv reboots. i cant find the eeprom ic. photo of the board attached.
                  thanks for your help.
                  Attached Files

                  Comment

                  • lotas
                    Badcaps Legend
                    • Jan 2016
                    • 4744
                    • Russia

                    #249
                    Originally posted by ladharimohamed2

                    yes, the samsung logo shows off for several seconds with backlight on then the logo goes off and backlight stays on for some seconds then the tv reboots. i cant find the eeprom ic. photo of the board attached.
                    thanks for your help.
                    It's hard to tell from this photo, but the eeprom should be 24c256.

                    Comment

                    • ladharimohamed2
                      Member
                      • Jul 2021
                      • 45
                      • tunisia

                      #250
                      Originally posted by lotas

                      It's hard to tell from this photo, but the eeprom should be 24c256.
                      Didn't find any other programmable IC, must be the nand W29N01HVSINF. thank you so much for your help

                      Comment

                      • lotas
                        Badcaps Legend
                        • Jan 2016
                        • 4744
                        • Russia

                        #251
                        Originally posted by ladharimohamed2

                        Didn't find any other programmable IC, must be the nand W29N01HVSINF. thank you so much for your help
                        Well, I don’t know what kind of motherboard you have, but the NAND is F59L1G81MA-25TI.

                        Comment

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