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Assuming you mean eMMC failure rather than “eMMX”: on the Sony KD-65XE9005, that is a plausible and common-enough failure mode in the repair community, especially when the TV shows boot loops, hangs on the Sony/Android logo, becomes very slow, will not complete reset/update, or goes effectively dead. Official Sony material does not call out eMMC as a model-specific defect, but Sony’s own troubleshooting path is: forced factory reset, then firmware update, then repair/service if the fault remains. The KD-65XE9005 is a 2017 Android TV with 16 GB on-board storage, and Sony’s support pages still list firmware v6.7220 as the latest posted update for this model family. (sony.co.uk)
If your set shows 8 red blinks, the X900E/XE9005 service documentation points to a 4KPQ / BMKS main-board fault, and the service flow says to replace the BMKS board. In practice, repair shops often find that the root cause on these Android-era Sony boards is the eMMC or another failure on that same main board. (manualslib.com)
Most practical repair options:
The KD-65XE9005 is part of Sony’s 2017 XE90/X900E Android TV generation. Because the operating system and user data live in onboard flash storage, a failing eMMC can present as a software-looking problem even though the underlying fault is hardware. Typical field symptoms are:
From an engineering standpoint, eMMC faults are tricky because they mimic corrupted firmware, bad app data, or unstable power sequencing. A worn or internally failing flash can still respond enough for partial boot, then crash when the OS touches damaged areas. That is why a TV may briefly show the logo, enter a reset screen, or even start an update, but never reach stable operation. This is also why “software repair” sometimes appears to work temporarily, then the fault returns.
For this specific platform, the strongest officially documented hardware clue is not “eMMC” by name, but the service manual’s mapping of some error behavior back to the BMKS main board. On the X900E series service flow, 8 blinks = 4KPQ error, and the manual directs the technician toward BMKS board replacement. That does not prove eMMC every time, but it strongly localizes the fault to the main logic board rather than the panel itself. (manualslib.com)
A useful way to think about it is:
| Symptom | Most likely area | Comment |
|---|---|---|
| Sony logo / Android logo loop | Main board / storage | Often consistent with eMMC corruption/failure |
| Forced reset starts but TV loops again | Main board / storage | Strongly suspicious for physical flash failure |
| USB firmware not detected or not completed | Main board / storage, sometimes wrong package/media | Try official package/method first |
| 8 red blinks | BMKS main board | Service flow points to board replacement |
| Completely dead set | Not only eMMC | Must also rule out PSU / standby rails / regulators |
The reason I would not jump straight to eMMC without a few checks is that “dead TV” can also come from:
As of March 18, 2026, Sony’s support pages for the KD-65XE9005 still show firmware v6.7220 as the latest listed firmware, published on September 27-28, 2023 depending on regional support site. Sony still provides the normal recovery path: update over network or USB, and use a forced factory reset when normal menu access is not possible. (sony.es)
Independent repair-community discussions continue to report Sony Android TV eMMC/main-board failures across this generation. Those same discussions also warn that if you replace or clone the eMMC incorrectly, secure data/DRM-related functionality may not survive intact, which can affect apps such as Netflix or CI+/protected-content functions. This is community evidence, not an official Sony statement, but it is technically credible and matches how secure storage is commonly handled in smart-TV platforms. (badcaps.net)
For a 2019-or-earlier three-button Android TV, Sony’s forced reset method is:
Sony notes that on these older models the Welcome screen may appear twice; you should not set up the first Welcome screen, because the TV may continue the automatic reset and present the second screen later. (sony.com)
That detail matters, because many users think the reset failed when in fact they interrupted the sequence too early.
Sony’s official KD-65XE9005 firmware page says USB update is supported. The current posted package is v6.7220; Sony instructs you to:
If the set cannot detect the USB package, repeatedly aborts the update, or returns to the same loop immediately after a proper forced reset and proper firmware attempt, the probability of a hardware storage/main-board fault goes up substantially. That is an engineering inference based on the official recovery flow and the failure behavior. (sony.com)
Main-board replacement is the more practical service action because it aligns with Sony’s own service flow for BMKS faults and avoids fine-pitch BGA rework. If the board is swapped, you still want the exact board sticker/variant and then the correct firmware/package flow afterward. (manualslib.com)
eMMC replacement is the lower-cost component-level path, but it is the more demanding one technically. Proper execution usually means:
Community repair reports for Sony Android TVs indicate that just writing a generic image can boot the TV in some cases, but secure services may break if the original secure data is lost or mismatched. Again, that point is from community repair experience rather than Sony documentation, so it should be treated as a strong caution, not a formal Sony rule. (badcaps.net)
If the set is totally dead with no useful LED behavior, do not assume eMMC first. Confirm:
A dead BMKS board can look like a bad PSU, and a bad PSU can look like a dead main board. This is where basic bench measurements matter more than guesswork.
Record the exact symptom
Try Sony forced factory reset exactly as specified
Especially on this older model family, follow the full timing sequence and wait for the reset to finish properly. (sony.com)
Try the official USB firmware v6.7220
.pkg in root,If you get 8 blinks, treat it as a BMKS-board fault
If doing component repair
After repair
If you want to push this to component level, the next useful items are:
A UART log can often tell you whether the board is failing at:
Yes—on a Sony KD-65XE9005, eMMC failure is a credible diagnosis if the TV boot-loops, hangs at startup, refuses reset/update, or otherwise behaves like a bad Android main board. Official Sony guidance is to do a forced factory reset and then a USB firmware reinstall using v6.7220. If that fails, the practical repair path is usually BMKS/main-board replacement; advanced technicians may instead do eMMC replacement and reprogramming, ideally preserving the original chip’s data if possible. (sony.com)
If you want, I can give you a model-specific step-by-step diagnosis flow next, based on your exact symptom:
User question
first it was a boot loop now it is sudden crashing and poor performance tried all the options listed on Sony's support.
Artificial Intelligence Response
Direct answer to the question
Based on the symptom progression you described — boot loop first, then random crashing and very poor performance, even after all Sony support steps — the most likely cause is hardware failure on the main board, with failing internal flash storage (eMMC/NAND) being the strongest candidate on Sony Android/Google TVs.
Short version:
If this is a Sony Bravia Android TV, I would stop spending time on software fixes and move to hardware diagnosis/repair.
Detailed problem analysis
Why the symptom pattern matters
The sequence you described is technically important:
That progression strongly suggests the fault is no longer just “corrupt software.” It points to a physical fault in the storage subsystem or, less commonly, another part of the main board such as:
However, among these, failing eMMC/internal flash best matches the exact progression you reported.
Why eMMC failure produces these symptoms
Sony Android TVs rely on internal flash storage to hold:
As flash wears out or develops bad blocks:
Boot files become difficult to read
Filesystem becomes inconsistent
Read/write retries increase
Crashes become more frequent
This is why a device can appear to “improve” briefly after a reset, then degrade again: the reset rewrites data, but it does not repair worn flash cells.
Why Sony’s official recovery steps may no longer help
Sony support procedures typically cover:
Those steps are valid for:
But if you already tried them and the TV still moved from boot loop to crashing + lag, that usually means:
In engineering terms: the recovery procedures exercised the storage device, but the underlying media/controller reliability likely continued to worsen.
Other faults that can resemble this
To be technically fair, eMMC is not the only possibility. Less likely but still possible:
1. Main-board power instability
If onboard regulators are unstable, the CPU or storage can brown out and crash.
Clues:
2. Overheating
A failing heatsink bond, dust, or a marginal SoC can cause crashes after warm-up.
Clues:
3. External HDMI/CEC conflicts
Some TVs can appear unstable due to connected devices constantly waking/restarting the system.
Clues:
4. Panel/T-con issues
These usually cause image artifacts, lines, shutdown protection, or blink codes rather than OS sluggishness.
Clues against panel issue:
So the probability ranking is roughly:
Current information and trends
From current community-reported repair patterns around older Sony Android TVs, a recurring trend is that boot-loop behavior after years of use or after a firmware update often turns out to be latent hardware failure, not merely “bad software.” The update or reset does not necessarily create the defect; it can simply expose a storage device that was already near failure.
Current repair practice tends to favor:
This is because:
A practical industry observation is that once a TV has progressed from boot loop to lagging/crashing, repeated resets rarely provide a durable fix.
Supporting explanations and details
A useful analogy
Think of the internal storage like a hard drive with unreadable sectors, except it is soldered directly to the board.
So “poor performance” here does not necessarily mean the CPU is bad. It often means the CPU is waiting on damaged storage.
Simple checks you can still do before opening the TV
These will not repair it, but they can strengthen the diagnosis:
Test A: Remove all HDMI and USB devices
If it still lags/crashes in the settings menu itself, the fault is internal.
Test B: Observe cold vs warm behavior
If it gets worse as it warms up, thermal or board-level issues may be contributing.
Test C: Use a simple local input
Test D: Check LED blink behavior
Ethical and legal aspects
Warranty and service
Data/privacy
Even though it is a TV, it may contain:
If sending the main board to a repair shop:
Safety
TV repair involves:
Do not work on it while plugged in.
Practical guidelines
Recommended path
Option 1: Replace the main board
This is the best option for most users.
Advantages
Important details
Good practice
Option 2: Send the board to a specialist for eMMC repair
Best if:
What the shop must be able to do
Risk
Option 3: Confirm diagnosis before spending money
If you want to be methodical:
Best practices if you open it
Potential challenges and how to overcome them
Possible disclaimers or additional notes
Suggestions for further research
If you want the next step to be precise, collect these details:
With that information, the next stage becomes much more accurate:
Brief summary
Your Sony device — most likely a Bravia Android TV based on the symptom pattern — is probably suffering from main-board hardware failure, most likely degrading eMMC/internal flash storage. The change from boot loop to crashing and poor performance after Sony’s support procedures is a strong indicator that the fault is no longer software-recoverable.
Most practical fix: replace the main board.
More advanced fix: specialist eMMC replacement/programming.
Least useful next step: repeating factory resets or firmware recovery again.
If you want, send me the exact Sony model number and, if possible, the main-board part number, and I can help you determine the most sensible repair path.