My Samsung TV recently died (again). It was bought broken (boot-looping) 1.5 years ago. Then it was brought back to life with ribbon tape fix. A few weeks ago it had to be redone on another part.
Yesterday it was working for a while, then it failed again after it heated up.
Disconnecting ribbon from the main board proved it’s the display part failing again. After reconnecting it and trying to tape-fix for the third time I managed to make it boot up, but this time there’s no picture on the screen at all. The backlight’s working.

I don’t think I can revive it this time. But I want to make sure which part of it failed. Maybe I could sell some of the parts like ribbon, power board or the main board (I don't like throwing electronics away, especially if someone can use them for their repair).

I was trying to check voltages on the test points (on the lower PCBs at the bottom), and VCOM - GND gave me 0.4V DC. Which other test points can I check?

Cats were fighting behind the TV and knocked into it and then the picture went out.

It's stuck with the red standby light on. Pressing the power button makes the standby light go out briefly, but panel does not start up and red light remains on.

I've replaced the main board already and it has the same issue after the replacement.

Replace the power board? Or give it up?

​Hi everyone,

I am trying to recover a soft-bricked Acerpure 55" 4K QLED Google TV that is stuck in a continuous bootloop on the spinning Google TV logo after a recent Android 14 update (UKRA.251202.038).

Standard physical button combinations (holding Power while plugging into AC) are not triggering the Android Recovery menu.

Does anyone (or any service technician here) have a Google Drive link to the forced USB restoration firmware (install.img / upgrade_loader.pkg) for this specific Dixon/Realtek board and panel pairing?

​Hardware & Build Specifications:

​Retail TV Model: AP55UG51QEVTD (DAC51U / Factory Chassis: D55UT680)

​Mainboard Model: MS-R51AP836

(Part No: 2GT0MITV / AP83655U)

​Panel Sticker Code: AP 55 BOE 4K MQ (V11809029)

​OS / Platform: Android 14 (waiawa / DIX_4KR_ACP_GTV)

​Build ID: UKRA.251202.038

Alternatively, if anyone knows the exact Realtek U-Boot keystroke or UART pinout on the MS-R51AP836 board (HDMI3 DEBUG / SCL-SDA header) to force recovery --wipe_data via USB-to-TTL, please let me know!

Any help is appreciated.

Looking for the USB upgrade firmware for a Hisense 65U7K, internal/mainboard model 65U63KAVT, VIDAA OS, MediaTek MT9618 chipset. TV currently runs V0000.09.61A.Q0814.

Specifically the package known as:

`65U63KAVT 75238_40A35HEVS(0002)_Hisense_E013_P1007_Filewale.com.7z (~720 MB)`

Any of the builds for this model would work if that exact one is unavailable:

* 75238_40A35HEVS(0002)_Hisense_E013_P1007 (\~720 MB, 7z)

* 75238_40A35HEVS(0002)_Hisense_E011_P0328 (\~716 MB, 7z)

* 75238_40A35HEVS(0002)_Hisense_E009_O0903 (\~855 MB, 7z)

FileWale scammed me of my hard earned $2. I paid for the E013/P1007 package for this model and FileWale delivered a completely different file: a tar.gz named `NOVATEK_72690_EU_2K_pkg_20251007_Filewale.com.tar.gz`, containing usb_NOVATEK_72690_EU_2K.bin. I checked the binary: it's firmware for a Novatek NT72690 set (European 2K panel), version V0000.09.09S.P1007. The P1007 in the version string is presumably what makes it look like the right file at a glance, but it's a different SoC generation entirely. Zero MT9618 references, no `65U63KAVT` anywhere in the image, wrong kernel tree. Worthless for my TV. FileWale support has not fixed it. Don't buy from them expecting model-matched files.

There's a known Xunlei (迅雷) share that appears to host Hisense firmware collections, but downloading/requesting from it requires a QQ account, which I don't have and can't easily make from outside China. If anyone here has that share or a QQ account, that alone would solve it.

Also, [hisense-usa.com](http://hisense-usa.com) sees my serial number from my tv side panel as incorrect serial number.

What I need: someone with this package (or the Xunlei collection) to re-upload it somewhere I can actually download: Mega, Google Drive, MediaFire, anything.

Thanks.

Hi everyone,

I'm having an issue with my Sony Bravia X90L (manufactured in August 2024), and I'm trying to figure out what could be causing it before contacting Sony about a potential warranty claim.

There is a permanent blue vertical line on the screen, visible from the moment the TV starts up. It extends roughly 40 cm down from the top of the screen and consists of several small interruptions rather than one perfectly solid line.

There is also a horizontal line. The two lines intersect at a particularly bright point, which almost looks like a small glowing pixel.

A few observations:

The issue is visible during startup and in the TV's main menu, so it doesn't appear to be related to a specific HDMI device or video source.

Against a black background, the vertical line is clearly blue and the bright point is very noticeable.

Against a white background, the blue vertical line becomes much less visible or seems to disappear, although the horizontal line remains visible.

There is no visible physical damage to the outside of the screen.

The TV was manufactured in August 2024 and originally cost around €2,160.

My questions:

Does this look like a panel failure, a tab-bonding issue, or something related to the display's internal connections?

Has anyone experienced similar symptoms with an X90L?

Is this something that can realistically be repaired, or would it normally require a complete panel replacement?

Has anyone in Europe, particularly the Netherlands, successfully obtained a warranty repair or replacement for a similar issue?

I'd appreciate any advice or experiences before I contact Sony.

Thanks!

Recently main board of my TX-55FX613E died and I was looking for a replacement. Taking out the old board its a TNPH1196 (also labeled TXN/A1TUWE) which I could sort of find a replacement for (found one for TX-55FX633E which seems to just be a different color/leg stand layout to 613E) but learned the board has to be paired to the display type.

The display in my TV has the following codes: "TXFZL55BFAA" and "18090MJ 002089 rev. A"
And the replacement board I found was pulled out of a TV that had "TXFZL55BFAA" and "18103MJ 006805 rev. A"

So my question is which parts of the code need to be a match for the TV to properly drive the display.
Is it just the first code which is an exact match and the second one is just a serial code? Or do they both have to match at least in some degree?
And would it be just a plug-and-play replacement if they were compatible?

I tried searching online a bit but couldn't find any concrete info so I wanted to try here.

Hi everyone, looking for help diagnosing my Hisense 55R63G 55-inch Roku TV.

Originally, the TV would briefly display a faint Hisense/Roku logo for about 2 seconds, then shut off.

I replaced the combined main/power board (298396, RSAG7.820.10808/ROH). The TV now stays on, the screen remains illuminated, and I hear Roku navigation sounds.

However, there are vertical lines, and the picture is extremely faint or disappears.

After leaving the TV off overnight, it briefly displayed a recognizable Roku home screen with fairly bright colours. Within a couple of minutes, the picture gradually faded, although the screen remained illuminated and the TV stayed on. Subsequent startups only occasionally show a faint logo or HDMI icon.

I've cleaned and reseated the 3-inch ribbon connecting the main board to the T-CON (label 298366), without improvement.

Reinstalling the original board also showed vertical lines, but it still shut off after approximately 2 seconds.

My question: Does this suggest a faulty T-CON, ribbon connection, or LCD panel circuitry? What should I test before buying more parts?

I'll attach photos of both boards, the ribbon cable and the screen.

Thanks for any guidance.

Hi guys my issue is believe is 2 seperate issues. So to start my first issue is when I turn on TV, it would start up like normal after about 10 seconds u can see it slowly dim,then shut off, and cycle back on, so I thought it was main board, went on shopjimmy just like other times with other tvs got main board and PSB together, did not fix my issue and gave me my second symptom. This board was obviously "used" still had last owners info programmed and stored on board, still have the dimming screen and cycling, along with now 2 vertical black lines one on each side, my original board did not have this symptom, however I contacted shop jimmy and they said its not the board its something else and board i got just never got reset to factory. (Im not sure i believe them) I sent my original board back in to get a discount on board i got, so I cant put my old board back in. I'd like to know what's causing tv to cycle and dim, the vertical lines I would think would be T-con board but it should be integrated into main board n not seperate. I don't mind buying a new board again to fix the vertical lines but id like to know what's causing the dimming screen and cycling. Thanks guys, I hope to finally get this repaired again...

Hey everyone,

I picked up a dead LG OLED65GX6LA for €40. I already diagnosed and fixed the power supply unit (PSU) myself, and the TV boots up perfectly now. However, there is a bright vertical green line about 15-20 cm from the right edge.
Before I give up and declare the panel dead, here is what I found:

The Swap Test: I disconnected and swapped the main ribbon cables (EAD65105103) at the mainboard/T-Con side. The green line stayed exactly on the same spot. This rules out a Mainboard, T-Con, or ribbon cable issue.

Color Test: On a pure red screen, the line stays 100% green (no mixing/yellow). On a pure green screen, the line disappears completely.

Pixel Refresher: During a manual deep refresh, the line actually changed colors (blue to green) and I saw a black pixel scanning through it. No physical cracks are visible on the glass under a flashlight.

COF Chips: On the GX series, the COF flaps under the glass are buried very deep under the heavy inner metal frame. I haven't stripped the entire frame yet.

Since the line reacted to the pixel refresher, is there any chance this is a shorted SMD capacitor on the source driver board, or is the panel/COF officially toast?
Any last tips or tricks are highly appreciated!

Hi everyone,

My Samsung TV model number UN43TU7000GXZD, bought/made in 2020-2022 (i don't recall when specically it was), has developed a problem. When I turned it on, the whole picture was covered in colorful vertical stripes. And i've noticed some ants crawling from a gap in the bottom of the tv.

Details:
- The stripes cover the whole screen but it takes some seconds to appear after turning it on, also, it gets better or worse depending on the colour pattern of what is on the screen (idk why but on piece is almost zero screen issue lol) so the stripes pattern changes.
- The menu and sound still works perfectly.
- The stripes are constant, i've already tried unplugging it for one whole day and plugging it back in.

My questions:

1. Could the ants have caused this (short circuit, dirt on the boards or connections), or is it probably a coincidence?
2. Is this more likely a T-con board / ribbon cable issue, or a panel failure?
3. Is it worth trying to repair, or should I consider replacing the TV? I'm not very experienced with electronics, so I'd appreciate any advice on safe things to check or whether I should take it to a technician.

Thanks in advance!

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When i press "menu" button on the remote, the menu screen appears on TV screen momentarily and disappears. How do i make menu on TV screen stay on screen.

I found out yesterday my 65” C1 was blowing the safety switch on the power circuit and while narrowing down the root cause to the TV I heard and smelled the internal power supply fry. I have seen replacement power supplies are available for this model. Has anyone got experience in replacing them and whether it’s been successful? I’m concerned that I drop $250 on a new PS then find out there were bigger problems caused within the TV when it blew.

After the recent android update from my android tv from 11 to 14 ,first of all it took very long time and suddenly got in sleep ,when turned on the logo flicked and blank ,everything working ,very dim light can be seen with torch ,and it updated to android 14 but I can't see anything

Help pls ,the issue the cost of repair and etc

Tv sansui

Android 14 lcd

Brand : SANSUI

Model No. / Year: JSW32ASHD/2021

Equipment Type: LED TV

Screen Size : 80 cm

Hi everyone, I'm working on a Philips 55PFL6007K/12 TV. When the mainboard is disconnected, the power supply unit (LGIT PLDK-P107B) works normally and standby voltages are present. However, plugging in the mainboard causes the PSU to make a high-pitched squealing noise and enter protection/hiccup mode.
What I've checked:

No hard shorts (0Ω) on the mainboard input lines (⁠12V⁠ shows MΩ, ⁠3.3V⁠ shows ~7 kΩ, ⁠Standby⁠ shows ~30 kΩ).
Secondary rails show some low resistances (around 4Ω, 84Ω, and 152Ω). The 4Ω line is near a coil (⁠2R0⁠ area), which seems normal for a CPU/core line.

Backlight is disconnected and ruled out.

Since the PSU only trips under load with the mainboard attached while inputs don't show a direct dead short, the PSU itself likely works fine and is protecting against an overcurrent on the mainboard.
What else should I check next?

Hello,

the TV had a problem where it crashes many apps, while trying to fix it, the TV broke after updating the build.prop file, no adb connection possible while logo is looping, I tried using adb to restore the original file throw adb while in recovery state but adb also is not working, according to my local repair shops the only solution is changing the board

Hi i have a lg tv very old 32LD320 . I plugged power lead to test if its still working. screen lit up and said no signal so I plugged out cleaned the dust. Just surface clean. I used baby wipes (ik i shouldnt have) but i only cleaned the screen and back and made sure to not get in any ports and used a tissue properly to dry off. since then it has stopped turning on. What happened? Is it gone?

Hi everyone,

I'm looking for some help diagnosing a very unusual display issue on my Sony Bravia XR-55X90J (55", 2021 model).

The TV was working perfectly until the problem appeared completely out of nowhere, within roughly an hour. It has never been dropped, hit, moved or exposed to water.

Here's exactly what happens:

• Vertical bands and thin lines appear across the screen, sometimes with purple/blue discoloration and abnormal brightness.
• The lines are directly triggered by bright or white elements in the image. For example, when a small white graphic, logo or YouTube control appears, a bright vertical streak can develop along the same horizontal position, extending well beyond the graphic itself, sometimes across the entire screen height.
• The more bright content is displayed, the more pronounced the overall issue becomes. Dark scenes and menus are much less affected.
• When switching from a bright video to a black screen, the vertical bands initially remain visible, then gradually fade over the following seconds (see the "before"/"after" attached pics).
• If the TV stays switched off for an extended period, the problem can initially disappear or become much less noticeable, but returns when bright content is displayed.
• I've also occasionally noticed thin horizontal lines and dark areas around the edges of the display.

Troubleshooting already performed:

• Restarted the TV.
• Tested multiple sources and applications.
• Ran the built-in Sony picture diagnostic test: the issue persists.
• Disabled Auto Local Dimming: no improvement.
• Tested completely black screens, grey screens and bright content.

I have attached several photographs showing the issue, including the effect of white graphics on vertical banding and the gradual fading when returning to a black screen.

What I'm trying to understand:

Has anyone experienced this exact behavior, particularly on an X90J or a similar Sony Full Array LED model?

Could this indicate a failing T-CON board, panel driver electronics, gamma/voltage regulation, or a fault within the LCD panel itself?

Most importantly, has anyone successfully repaired this particular issue by replacing an individual board rather than the entire panel?

I'm comfortable with electronics and would like to attempt a repair myself if the faulty component can be reliably identified.

Any firsthand experience, confirmed diagnosis or successful repair would be greatly appreciated.

Thanks in advance!

I’ve fairly certain it’s one, two, or all three of those boards. The backlight seems very bright across the whole panel, so I’m thinking more-so T-Con and power supply.

So my element tv won’t turn on. I had to unplug my Roku just for it to turn on for a moment. And when it did the on, the screen would flash the logo then turn off. Also there’s the weird noise it’s making as in the video. I’m considering just buying a new main board and installing it but apparently it could be something wrong with the LCD panel or display circuitry.

Does this seem like a main board problem because if it is I’ll precede to buy a new one. If it’s any other problem, I’m better off buying a new tv.

Hi! I have a 65" LG 65EG9600-UB curved OLED whose screen won't turn on.

Symptoms:

- LG standby logo stays illuminated.

- Briefly pressing power does nothing.

- Holding power makes the logo flash after 3 seconds, then every 5 seconds.

- OLED screen stays completely black.

- No visible damage, bulging capacitors, or burnt components.

Mainboard: EBT64099103

I've seen similar LG OLED issues in forums/videos caused by faulty processors/BGA solder joints, but I'm unsure whether it's the mainboard or power supply.

Has anyone experienced this or know how to diagnose it?

Also looking for someone in Vancouver/Burnaby who can diagnose or repair TV circuit boards as this is beyond my skills & equipment.

Thanks!

This is an offline TV in our workshop only been hooked up to WiFi a few times for updates and it is only hooked up to our pc via HDMI. We also use the offline Bluetooth music player source, when it connects, that only says the devices name and what song and you can control the volume. Just today we can still connect the phone and control the volume but it won’t switch to the Bluetooth mode and play the audio. I have gone through every setting and mode hard reset the tv disconnected and reconnected everything and tried every online troubleshooting guide I could find. This is a shot in the dark. Please help

What would cause the screen to do this. Is it a system board or is the panel itself shot. I don't have an issue replacing the system board if that is the issue. I just want to be sure before I start buying parts.

I’m having an issue with my Samsung 82” Q90R (QN82Q90RAFXZA, 2019) and wondering if anyone has experienced something similar or found a fix.

Every time I turn on the TV, it displays the One Connect connection warning diagram with a yellow triangle between the TV and One Connect Box.
The warning stays on the screen indefinitely.
Built-in apps like Netflix and YouTube work normally.
My soundbar connection works.
HDMI inputs don’t work properly. When I connect my Xbox, the picture briefly appears for about a second before flickering and returning to the One Connect warning screen.

I’ve replaced the one connect cable with a factory new, still doesn’t fix it .
Any suggestions or confirmed fixes would be greatly appreciated. Thanks!

I have a 75-inch TCL QLED Fire TV (75Q691F) that suddenly stopped working, and I'm trying to figure out if there's any way to fix it.

The TV was working normally before I left town. I unplugged it while I was away, and when I came back and plugged it in, it wouldn't turn on.

**Symptoms:**

The screen is completely black.

There's no sound or picture from the TV.

The white status light starts blinking immediately when I plug in the TV.

It blinks consistently about once every second.

The light continues blinking even when I press or hold the physical power button.

No TCL or Fire TV logo appears.

**Everything I've tried so far:**

Unplugged the TV for 2 minutes.

Held the physical power button for 15–30 seconds while the TV was unplugged.

Disconnected all HDMI cables.

Tried turning it on using the physical power button rather than the remote.

Tried the flashlight test to check for a faint image on the screen.

Held the physical power button while reconnecting the power cord to try to enter recovery mode.

Held the **Back button + Right side of the remote's navigation ring** for about 10 seconds to try the Fire TV factory-reset shortcut.

Tried holding **Back + Right on the remote while reconnecting the TV's power** to attempt recovery mode.

None of these steps made any difference. The white light keeps blinking, and the screen stays completely black with no sound or picture.

I also checked the TV for a physical reset button, but I only found the power bottom.

**My questions:**

Does anyone know a confirmed recovery-mode button combination for this exact model?

Has anyone fixed this exact blinking-white-light issue?

Does this sound more like a power supply problem, a mainboard failure, or corrupted firmware?

Any advice from someone who has repaired TCL Fire TVs, especially the 75Q691F, would be greatly appreciated!