Samsung ue40h6700st logo boot corruption

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • vikivng
    Badcaps Veteran
    • Feb 2019
    • 216
    • uk
    #1

    Samsung ue40h6700st logo boot corruption

    Can someone help me pinpoint the possibly corrupted chip here that needs to be reprogrammed?
    Based on my research, this is the cause of these symptoms??
    Samsung smart logo appears on power on.Stays visible for one second then only backlight glow remains. Until tv powers off by itself in five mins there is no response to the remote or tv buttons.Tv goes off and stays off until it is turned on again.
    Pls help
    Attached Files
    Tags: None
    • vikivng
      Badcaps Veteran
      • Feb 2019
      • 216
      • uk
      #2
      Re: Samsung ue40h6700st logo boot corruption

      Another photo
      Attached Files

        Comment

        • vikivng
          Badcaps Veteran
          • Feb 2019
          • 216
          • uk
          #3
          Re: Samsung ue40h6700st logo boot corruption

          Anyone??

            Comment

            • diif
              Badcaps Legend
              • Feb 2014
              • 6978
              • England
              #4
              Re: Samsung ue40h6700st logo boot corruption

              It looks like a Samsung OneNAND to the left of the optical port.
              I think there is also an 8 pin eeprom somewhere, usually indicated with a dot of paint. Under the heatsink perhaps.

                Comment

                • lotas
                  Badcaps Legend
                  • Jan 2016
                  • 4455
                  • Russia
                  #5
                  Re: Samsung ue40h6700st logo boot corruption

                  There is no OneNand on this chassis, there is eMMC - KLM4G1FEAC-C031 or JWA50, + EEPROM 24C512, and SPI W25Q40C.

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    • torchzack
                      Samsung 55" TV - Boot loop but sometimes works fine - UE55MU6470U
                      by torchzack
                      Hi Team - just joined to see if anyone can offer some expertise in diagnosing an issue with a TV.

                      I've done a few hours googling and youtubing but just seeing if anyone has any insight here. I got a 55" Samsung UE55MU6470U which seems to boot loop and then after 10 mins will boot, work for a few minutes, then turn off and repeat.

                      Whilst it's on into the normal Samsung menu/boot screen it looks perfect - so I can't see there being any screen issues. I've seen lots of videos with taping across clock lines to diagnose which particular one may be an issue but i don't...
                      08-28-2023, 07:42 AM
                    • Document Archive
                      Samsung Galaxy Book 2 Notebook Specification for Upgrade or Repair
                      by Document Archive
                      This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
                      09-07-2024, 05:50 AM
                    • eigma
                      Samsung UN40H5003 boot loop every ~8 seconds
                      by eigma
                      Hi, I rescued a Samsung UN40H5003AF (H = 2014 FHD) from the curb. Symptoms are: standby (red) light comes on, stays on for 8 seconds, flickers off, then comes back on, and the cycle continues.

                      Service manual: https://www.electronica-pt.com/esque...is-u8la-71272/

                      SMPS board: checked voltages, all seem normal (A13V = 12.8V, UD = 3.3V, PWM_BLU = 0.77V, PS_OnOff = 5.5V). Remove 10p cable to main board -> backlight comes on. I think this means SMPS board and backlight are good.

                      Main board: BN94-07592P / BN97-08922R...
                      1 Photo
                      11-20-2024, 10:31 PM
                    • q2v5
                      Lenovo T480s, what's up with this Bios, modded boot logo, reflashed now bricked
                      by q2v5
                      Lenovo T480s
                      Model 20L8-S3TE00
                      Board ET481-U10
                      Chip MX25L12873F

                      Hi, I have a few of these & they came with a custom bios boot logo, no passwords etc.

                      2 x were brand new unused but with custom boot logo, 1 I installed Windows/ran updates then it bricked itself. 1 wouldn't get past the custom bios boot logo.

                      The third I loaded windows, took a backup of the bios chip, then tried to flash several different clean bios's via programmer which all caused it to not boot. I tried to reflash the original bios both using clip & desoldering but...
                      08-15-2024, 10:40 PM
                    • NolesFan
                      Samsung un82ru88000f - Boot loop sort of but can correct with taping of LVDS ribbon
                      by NolesFan
                      Hello all... TV started boot looping. Opened the back panel and tried to isolate the problem. Just PSB no boot loop. PSB and MB no boot loop. Plug in the LVDS from panel to MB and boot looping starts up. It doesnt matter of order that I plug the LVDS ribbons back in, only 1 and no boot loop but as soon as 2nd one plugs in boot looping. I then noticed a flicker on the screen when I was closing the clip on the harness to the LVDS. Shut the lights off so I can see better, and I noticed as i slowly close it, I will get a picture, but as soon as it clips in, I lose picture and booting happens. So I...
                      2 Photos
                      10-24-2024, 06:36 PM
                    • Loading...
                    • No more items.
                    Working...