Horizon 50HL7590U/B Firmware: Official Update, Vestel Board, Panel Codes, OTA & USB Methods

User question

Horizon 50HL7590U/B firmware

Artificial Intelligence Response

Direct answer to the question

• The Horizon 50HL7590U/B uses a Vestel mainboard family, and its firmware is hardware‑specific (board revision, panel code, tuner, region). It is not safely replaceable with a “generic” image.
• First try OTA update from the TV menu. If the set is unresponsive or OTA fails, the correct USB service package must be obtained from Horizon/authorized service based on your unit’s serial number, mainboard code, and panel code.
• Do not flash firmware obtained for a different mainboard/panel; mismatches commonly cause black screen, mirrored/doubled image, boot loops, or permanent brick.

Key points

• Identify: mainboard code (e.g., 17MB170/17MB180/17MB211x), LCD panel code (e.g., VES500QND…).
• Preferred update path: OTA via Settings. Service USB update only with the exact, signed package for your hardware.
• Typical recovery trigger: FAT32 USB ≤32 GB with the provided files at root; plug AC while holding OK on the original remote until LED flashes rapidly (procedure varies slightly by board).

Detailed problem analysis

• Platform: Horizon 50HL7590U/B is a 50‑inch 4K Android/Smart TV built on a Vestel chassis. Vestel’s software stack binds panel timing tables (TCON parameters), tuner options, regional apps, and DRM provisioning to the mainboard BOM. As a result, “close enough” firmware rarely works; the panel LUTs and EDID/option bytes must match your exact panel (commonly VES50xx… for 50").
• Update channels:
  • OTA (Over‑the‑Air): Signed packages are offered by model/region and validated by the bootloader. This is safest and preserves app/DRM provisioning.
  • Service USB: Used when OTA is impossible (boot loop, system corruption). Images are board‑ and panel‑specific and often named after the mainboard (e.g., upgrade_mb170.bin or MB1xx_en.bin with companion resource files). The bootloader checks signatures and option compatibility.
• Failure modes that look like “needs firmware”:
  • Boot loop at Horizon/Android logo: often corrupted eMMC partition or bad blocks; reflashing may help, but failing eMMC will relapse.
  • No picture with backlight on: common symptom of panel mismatch (wrong panel profile in firmware) or TCON/panel power issue.
  • Mirrored/double/solarized image: panel table mismatch; sometimes correctable in service menu if the right panel profile exists, otherwise requires the right firmware package.
  • Dead/no USB recovery reaction: can be USB incompatibility, wrong file naming, corrupted bootloader/SPI, or hardware fault (eMMC/PMIC).
• Hardware dependencies:
  • Mainboard families you’re likely to see in this model generation: 17MB170, 17MB180, 17MB211/211S. Each requires its own image and often sub‑revisions.
  • Panel codes typically start with VES500… for 50", and exact suffix matters (timing tables differ by suffix).
  • DRM keys (e.g., Widevine L1) and streaming entitlements reside in secure storage and are not present in “dump” images; losing them breaks premium streaming even if the TV boots.

Current information and trends

• Vestel-based sets continue to enforce secure boot and board‑/panel‑specific packages. Public distribution of full service images remains limited; OEMs prefer OTA for end users and reserve USB packages for authorized service.
• Android TV builds on 2019–2021 Vestel boards typically receive limited major‑version upgrades; by 2024–2025 many units are on security/maintenance updates only. Expect app/DRM requirements (Widevine L1, HDCP 2.2/2.3) to remain strict; preserving device keys is essential.
• Field practice in 2025: technicians frequently fix boot loops by eMMC replacement/reprogramming on 17MB1xx/2xx boards; simple reflash is insufficient when eMMC is worn.

Supporting explanations and details

• Why matching matters: Panel timing, gamma, VCOM, and 10/12‑bit LUTs are compiled into the package; mismatched tables yield distorted or no image. Tuner/DVB option bytes also control region features and CI+ behavior.
• USB media quirks: Older Vestel bootloaders are picky—use a small USB 2.0 stick (2–16 GB), MBR‑partitioned, FAT32, no other files. Avoid exFAT/NTFS and USB 3.0 sticks.
• Recovery triggers seen on Vestel:
  • Hold OK on the original IR remote while applying AC power until standby LED flashes rapidly.
  • Alternative on some boards: hold VOL− on TV side keys while plugging in.
  • Keep only one USB stick inserted in USB1 if ports are labeled.
• Service menu access (if TV boots): common sequences are MENU 4725 or SOURCE 2580. Change only the panel option if you know the exact code; wrong settings can brick or damage the panel.

Ethical and legal aspects

• Firmware packages are copyrighted and may include licensed components and device‑unique keys. Sharing or using unauthorized dumps may violate license terms and can strip DRM functionality.
• Safety and warranty: Unauthorized service updates or opening the set can void warranty and create shock/ESD hazards. Follow ESD precautions and disconnect mains before disassembly.

Practical guidelines

Implementation steps (start with the least invasive):

1. Identify your hardware
   • Photograph labels: rear cover (model/serial), mainboard silkscreen (e.g., 17MB170/180/211…), and panel sticker (e.g., VES500QND… complete suffix).
2. Try OTA first (if the TV boots)
   • Android TV path typically: Settings → Device Preferences (or Support) → About/System Update → Check for updates. Keep the set on stable Internet and AC power.
3. If OTA fails or TV is stuck/boot‑loops
   • Request the exact USB service package from Horizon/authorized service. Provide model, serial, mainboard, panel code, current symptoms.
   • Prepare a USB 2.0 stick ≤32 GB, FAT32, MBR. Place provided files at root exactly as named (do not rename).
   • Recovery: remove AC, insert USB in USB1, press/hold OK on remote, apply AC, keep holding until fast LED blink starts; then release and wait 5–10 minutes. Do not interrupt power. The TV should reboot into First Installation if successful.
4. If there’s no LED activity/USB boot
   • Try a different small USB 2.0 stick/port; re‑format FAT32.
   • Recheck file names and that the image matches your board family.
   • If still dead: diagnose hardware—check standby/always‑on rails, 3.3 V/1.8 V/1.2 V regulators, and eMMC health. Many cases require eMMC reball/replace and programming with the correct image using a programmer.
5. Post‑flash checks
   • Verify picture geometry/colors; if wrong, choose the correct panel option in Service Menu or reflash with the panel‑matched package.
   • Confirm DRM (Widevine) and streaming apps work; if not, keys may be lost—requires authorized service.

Potential challenges and mitigation

• USB not recognized: use older/smaller USB 2.0 sticks, front USB1, and clean FAT32.
• Mirrored/double image after flash: wrong panel table—do not try random profiles; get the right build for your panel.
• Recurring boot loops: suspect worn eMMC; replacing only firmware won’t last.

Possible disclaimers or additional notes

• Without the exact mainboard and panel codes, no one can safely provide you a working image; “same model” from another unit may still be incompatible.
• Some regions/partners distribute only OTA to end users; service USB packages may be restricted to service networks.

Suggestions for further research

• Obtain and record: full serial number, mainboard code, panel code, current firmware version (if accessible), and precise fault symptoms.
• If you have UART pads exposed on the mainboard, capture boot logs; they quickly distinguish software corruption from eMMC or PMIC faults.
• Explore service bulletins for your board family (17MB170/180/211) regarding eMMC endurance and recommended replacements.

Brief summary

• Use OTA first; for service USB you must get an exact, signed package matched to your 50HL7590U/B’s mainboard and panel. Random or “close” firmware will often brick or misconfigure the panel.
• Prepare proper USB media and follow the correct recovery key sequence. If recovery doesn’t start or the problem recurs, diagnose eMMC and power rails—many failures are hardware, not just firmware.

If you share the following, I can pinpoint the correct path: 1) mainboard code (17MBxxx), 2) full panel code (VES50… suffix), 3) serial number, 4) what the TV currently does (boots/loops/no image/mirrored), and 5) whether you can still access the settings or service menu.

Disclaimer: The responses provided by artificial intelligence (language model) may be inaccurate and misleading. Elektroda is not responsible for the accuracy, reliability, or completeness of the presented information. All responses should be verified by the user.