TP.HV352T PB753 Firmware: Android 12 Image, USB Flashing, Board & Panel Matching

User question

Firmware placa tp.hv352t

Artificial Intelligence Response

Direct answer to the question

• TP.HV352T is a family of “combo” TV mainboards (power, scaler, Android SoC, back-light driver in one PCB).
• Firmware is not universal; it must match the exact suffix (e.g. TP.HV352T.PB753), LCD panel model, tuner region and memory size.
• The most frequently requested package for the PB753 variant running Android-12 is:
  allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin.
• Reliable sources are specialist repair forums (Elektroda, Badcaps, Remont-aud, ElektrônicaBR), Teckwiki, official service portals, or a dump from a working set.
• Update is usually done through a FAT32-formatted USB stick; if the bootloader is dead the SPI/EMMC must be flashed with a programmer (e.g. CH341A, RT809H).

Detailed problem analysis

1. Board family
   • TP.HV352T.PB752 / PB753 / PB755 share the same SoC (CV3520S-B or V3520N0E), 1 GiB DDR3, 8 GiB eMMC, Wi-Fi/BT module and integrated PSU.
   • Suffix differences: power section, back-light current, tuner type and factory panel list.

2. Why exact matching is mandatory
   • Panel timing tables (LVDS/V-by-One mapping, polarity, frequency).
   • IR/CEC code tables and OSD language pack.
   • Region-specific DVB-T/S, ISDB-T, ATSC channel tables.
   • Wrong image → white display, mirrored picture, no back-light, stuck logo, or hard brick.

3. Firmware components
   • Boot0 / Boot1 (secure bootloader)
   • U-Boot (fastboot)
   • Kernel / DTB (panel pinout)
   • System (Android 9/11/12, compressed as system.new.dat)
   • Vendor, product, misc partitions
   • Logo.bin, factory, calibration tables

4. Typical firmware naming convention

   allupgrade_[platform]_[PanelCode]_[RAM]_[FLASH]_[extra]_sos.bin
   allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin <- “an12”=Android 12

   Inside the single 1–1.2 GB BIN there is a multi-partition image that the bootloader “splits” during USB flashing.

5. USB recovery procedure
   a. Format ≤8 GB pendrive FAT32, MBR, 4096 bytes cluster.
   b. Copy only the BIN, keep original name unless instructions say otherwise.
   c. With TV unplugged insert USB to service port (often USB0).
   d. Hold physical Power/OK key on TV, plug AC.
   e. Red/blue LED blinks fast → writing (3-10 min).
   f. Auto-reboot, first boot is slow (optimising Android).
   g. Remove USB, perform factory reset (Menu→1147 or Input→2580 depending on brand).

6. Programmer method (dead boot or wrong image)
   • Identify memory: 8-pin Winbond 25Q64/25Q128 (SPI) or BGA169 eMMC.
   • Take full dump first! (legal backup + fallback).
   • Erase, program, verify.
   • Supply board with 3.3 V from programmer only (avoid stray AC).

7. Symptoms & diagnosis table

Symptom	Probable cause	Remedy
Stuck on logo loop	Corrupt / mismatched system partition	USB re-flash correct image
White screen, back-light ON	Wrong panel timing	Flash firmware for the exact panel; or change “LVDS Map” in service menu
No standby LED, no consumption	Boot0 corrupted	In-circuit SPI/EMMC re-program
Inverted or mirrored picture	Panel parameter byte wrong	Service menu → “Mirror/V-Flip”; if unavailable re-flash

Current information and trends

• 2023–2024 dumps show migration from Android-9 to Android-12 on the same hardware; “V3520N0E” suffix denotes updated secure-boot chain.
• Vendors are starting to sign images; future boards may refuse unsigned community dumps.
• Independent technicians now share “pre-activated” TWRP recovery images that allow ADB pull/push directly from the board—useful for rapid panel changes.

Supporting explanations and details

Example: If your 32″ set uses a BOE HV320WHB-N55 panel (1366×768), look for a BIN that contains “…C320…” inside the filename or release notes. Mixing it with a “…FHD…” (1920×1080) image will drive the T-CON at the wrong clock and you will get vertical coloured lines or no image.

Ethical and legal aspects

• Firmware is intellectual property of the TV OEM; redistribution without permission may violate copyright. Use only for repair/backup in jurisdictions that allow it.
• Flashing voids warranty.
• Ensure compliance with regional RF regulations when altering tuner firmware.
• Always disconnect AC power; mains areas are exposed on combo boards—risk of lethal shock.

Practical guidelines (check-list)

1. Read the PCB silkscreen: TP.HV352T.PB7xx + revision.
2. Note panel sticker (e.g., HV320WHB-N55).
3. Search “ firmware” on Elektroda, Badcaps, Elektronicabr.
4. Verify MD5/SHA-1 hash published by the uploader.
5. Keep an un-touched dump of your original chip.
6. After success, enter service menu, load factory default, re-calibrate white-balance.

Disclaimers / additional notes

• Some TVs ship with locked bootloaders; if the USB method refuses to start, the supplier likely set a secure_mode flag—only signed OTA packages will run.
• Community images sometimes remove HDMI-CEC or Netflix Widevine L1 for licence reasons.
• A few early PB752 boards use a 4 MByte SPI; Android-12 images no longer fit—upgrade to a 64 Mbit chip or stay on Android-9.

Suggestions for further research

• Investigate open-source rootfs replacement (e.g., buildroot-tv) to extend life of these boards.
• Follow threads on Elektroda “Android12 HV352T” for incremental patches (Google Play fix, Miracast stability).
• Study the CV3520S datasheet to understand secure boot registers and how to dump Boot0 without removing eMMC.

Brief summary

Correct firmware for a TP.HV352T board depends on the complete board suffix, LCD panel code and regional tuner setup. The most requested Android-12 dump for PB753 is allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin, obtainable from specialised repair forums. Use a FAT32 USB for standard recovery; resort to a programmer only if the bootloader is destroyed. Always back up, match panel codes, and observe safety, copyright and regulatory considerations to avoid a permanently damaged TV.

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.