UE40D5500 Keeps restarting software problem!

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  • sigmeyer
    Senior Member
    • Feb 2020
    • 147
    • Serbia
    #1

    UE40D5500 Keeps restarting software problem!

    Samsung TV has issue with nand flash , keeps restarting. All voltages present and OK. I disconnected the PWM pin from motherboard connecter and it still keeps restarting. So its not psu issue , disconnecting the Tcon board changes nothing either.
    My question is , will reprogramming the nand chip fix the problem? it has a nand chip and i think its called EEMC chip for storing memory. I was thinking to use RT809H programmer to reprogram the chip and hopefully fix the issue or maybe if someone has some boot/flash files i can do it thru USB.
    Thanks alot in advance.
    Tags: None
    • sigmeyer
      Senior Member
      • Feb 2020
      • 147
      • Serbia
      #2
      Re: UE40D5500 Keeps restarting software problem!

      I have tried connecting sda line to ground..following online guide to reset eeprom. Didnt work.. now the tv stays on for longer and thats it...anyone can inform me of all the stuff that comes to reprogramming nand chips?
      Attached Files

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        • diif
          Badcaps Legend
          • Feb 2014
          • 6978
          • England
          #3
          Re: UE40D5500 Keeps restarting software problem!

          It's usually bad blocks on the Samsung NAND. It will need replacing, the last time I checked a RT809H wasn't able to program the blanks chips.

            Comment

            • arizanotlari
              Senior Member
              • Nov 2014
              • 158
              • Turkiye
              #4
              Re: UE40D5500 Keeps restarting software problem!

              Hi.
              Do you have any programmer?
              Do you have tsop48 adapter?
              Do you know different of NAND and eMMC Flashs?
              https://www.badcaps.net

                Comment

                • sigmeyer
                  Senior Member
                  • Feb 2020
                  • 147
                  • Serbia
                  #5
                  Re: UE40D5500 Keeps restarting software problem!

                  I have none of those things , arizan , i want to buy them , thats why i am asking so i am informed before i buy stuff. What programmer do i need? and can i take same nand chips wipe them and rewrite what i want?

                    Comment

                    • arizanotlari
                      Senior Member
                      • Nov 2014
                      • 158
                      • Turkiye
                      #6
                      Re: UE40D5500 Keeps restarting software problem!

                      You can buy tnm5000 or rt809h with tsop48 adapter.

                      diif is right. Rt809h not good for rewriting old k9gag08u0e chips.

                      If you don’t have any programming experience check this channel
                      https://m.youtube.com/channel/UCzpAcvN9AlDhPu5Kk4iqGbw
                      https://www.badcaps.net

                        Comment

                        • sigmeyer
                          Senior Member
                          • Feb 2020
                          • 147
                          • Serbia
                          #7
                          Re: UE40D5500 Keeps restarting software problem!

                          Uhmm i just saw TNM5000 on ali express and it goes around 2000$ ... that is wayy out of my budget... Can i do this with RT809H ? whats the drawback?
                          Happy new years yall

                            Comment

                            • sigmeyer
                              Senior Member
                              • Feb 2020
                              • 147
                              • Serbia
                              #8
                              Re: UE40D5500 Keeps restarting software problem!

                              I bought the programmed chip from a local guy.. it fixed the problem. He told me not to connect the tv to the internet or else the problem might happen again... is this true?

                                Comment

                                • nomoresonys
                                  Badcaps Legend
                                  • Jan 2013
                                  • 12088
                                  • U.S.
                                  #9
                                  Re: UE40D5500 Keeps restarting software problem!

                                  If having the tv connected to internet messes up the nand, then the tv is kind of useless. Your nand did have a problem but just being connected should not be an issue. If you can and don't already try connecting internet with ethernet cord instead of wifi and I would turn off any software/firmware auto updates, I turn all auto updates off just to be safe, you can always update manually when/if needed.

                                    Comment

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