Samsung UE40D5520 TV Repair, Logo only, restarting, restart loop

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  • @dulkazizi
    @dulkazizi 5 місяців тому

    Clean and nice work 😁

  • @fillo1971
    @fillo1971 Місяць тому

    Amico mio cambia tipologia di punta di saldatore perché rischi di fare danni sulle piazzole, fidati 👍🏻, per il resto grazie per il video

  • @paulsmith3652
    @paulsmith3652 Місяць тому

    Was that nand chip preprogrammed, or did it update from the e eprom at start up. Cheers Paul

    • @southlondonrepair
      @southlondonrepair  Місяць тому

      We had to program it before installation.
      You can find a suitable dump on the badcaps forum, or if you can't find it, I may post one. Just let me know the full model number.

  • @directsystems2225
    @directsystems2225 4 місяці тому

    Whag brand and microscope is that?

    • @southlondonrepair
      @southlondonrepair  4 місяці тому

      I bought on AliExpress. Absolute noname, but surprisingly good quality. Check it out!
      £98 | 48MP 1080P HDMI USB Digital Camera Industrial Video Image Microscope 130x Zoom C Mount Lens Cantilever Stand Mini Desk Spotlight
      a.aliexpress.com/_EzZcmBt

  • @sunildutt3924
    @sunildutt3924 5 місяців тому

    Where from u purchase feeded nand because when we will try to read backup the programer will be cracked id & set could be gose in 3 blink the D series is very risky

    • @southlondonrepair
      @southlondonrepair  5 місяців тому +3

      We are bought empty chips, usually 10 at the same time. We saved the nand software from working television. When we don't find for a model, we usually download from BadCaps (find link below).
      Many of the new nand chip is already has bad cells, so first we check all the chips. Usually a 50% is is returned.
      Once we have a good chip, we write the dump using one of our programmers.
      Many times you can see the same problem rebooting, but the problem is in 30% is a bad soldering.
      I got better after 50 mainboard repair, but still making mistakes.
      Sometimes the heat can also damage the chip, so if it is not working, sometimes a remove it and verify the firmware. If the chip is damaged, I just replace it.
      If I find a good seller, I always order 5 extra chips just for stock.
      www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/55274-eeprom-dump-thread/page70#post1735627

    • @southlondonrepair
      @southlondonrepair  2 місяці тому

      Thanks for your comment