Looking for TP.HV352T.PB753 Firmware Download and Installation Guide (allupgrade_an12_V3520N0E)

youcef3232 wrote:

tp.hv352t.pb753 @ElektrodaBot

Direct answer .
- The board number TP.HV352T.PB753 alone is not sufficient - the firmware must be matched to the specific TV model, matrix (panel) used, memory and tuner configuration.
- The file you are looking for has a typical rescue name for this platform: allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin. It will only work if it is built for the identical board and panel variant as your TV.
- Installation usually takes place in SOS mode from a FAT32 memory stick: .bin file in the root directory, switch on the TV with the power button on the casing pressed until the LED starts flashing rapidly; the whole thing takes 5-15 minutes.
- Please provide: make and full model of the TV from the sticker, panel code (e.g. V390.../HV320.../ST3151...), symptoms (bootloop, logo freeze, black screen). Without this data it is not possible to indicate a safe batch.

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Detailed analysis and procedure .

1) What you need to identify before you upload anything .
- The full TV model from the back label and the production version (REV/Version/Code).
- LCD/LED panel designation from the sticker on the matrix (e.g. BOE, CSOT, Innolux; codes like HV320..., V400..., V390...).
- Memory configuration: usually 8 GB eMMC and 1 GB RAM (often 2 × 512 MB - hence the "512X2MB" in the file name).
- Exact board designation: TP.HV352T.PB753 + any suffixes/revisions from the white stickers.
- Symptoms: does the TV enter the system, or just the logo, or no backlight, or no picture with sound, etc.?

Why this is critical:
- Each panel requires different LVDS/eDP timing, colour mapping and backlight configuration. Incorrect batch = no picture, inverted/negative, white screen, flicker or no backlight.
- Different variants have different remote control codes, Wi-Fi/Bluetooth drivers, tuner configurations (DVB-T/T2, DVB-C, DVB-S/S2).

2) About the file name "allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin" .
- allupgrade ... sos.bin - "rescue" (full) image, run without running Android, directly from the bootloader.
- an12 - compilation line under Android 12 for this platform.
- V3520N0E - SoC/SDK branch number of this board family.
- 8G_512X2MB - target memory map: 8 GB eMMC, RAM 2 × 512 MB.

Note: packages available on the web with similar names, but with a different panel profile, can "get up" and still not give an image or block further updates (incompatible keys/secure boot).

3) Preparation and upload (SOS mode via USB) .
1. flash drive 4-16 GB, formatted as FAT32 (MBR, default cluster size).
2. Copy exactly one file: allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin to root directory.
3. TV disconnected from the mains. Insert the memory stick into the USB port (usually USB1/USB 2.0).
4. hold the power button on the TV casing (or joystick - position "OK/Enter"). While holding the button, connect the power.
5. signals the start of the upgrade: fast flashing of the standby LED, sometimes the screen "Upgrading...". Release the button only after the sequence has started.
6. do not disconnect power for 5-15 min. The TV will reboot itself when finished.
7. the first startup is longer; do a factory reset from the menu (to clear NVM/parameters from the previous version).

If the update does not start:
- Use another flash drive (USB 2.0, small capacity), a second USB port.
- Make sure of the file name; on some revisions, variants without "_sos" or with a different suffix are also accepted, but only if the manufacturer has so provided. Do not rename at random.

4) After uploading - panel service settings .
If the picture is incorrect (missing, negative, wrong orientation, stripes), enter the service menu and select the correct panel type:
- Input type: Source/AV → 2580 or Menu → 1147 (combinations vary between OEMs).
- Set: Panel Type (exact model), LVDS Map/Swap, H/V Flip, backlight PWM brightness.
- Save and reboot.

5) Troubleshooting .
- LED flashes but no progress on screen: possible panel incompatibility - process may be running 'blind'. Check image after reboot, possibly correct in service.
- No response to flash drive: potentially faulty bootloader in SPI or active security (secure boot only accept signed images).
- Remote control does not work after flash: different IR/BT map in firmware. Sometimes it is possible to change the type of remote control in service.

6) Emergency routes (if SOS does not work) .
- Programming of SPI memory (e.g. 25Q64/25Q128) with CH341A programmer - uploading correct bootloader (dump from identical board).
- Programming eMMC via adapter (ISP) or test connector - advanced, requires some "full dump" under identical model/panel.
- UART (TTL 3.3 V) - boot logs make it easier to assess whether the bootloader sees USB and why it refuses.

7) Common pitfalls .
- "Nearly matching" batch with same PB753 but different panel - TV seemingly starts but with no picture or errors; risk of permanent NVM mismatch and OTA lock-up.
- Power supply during flashing - voltage spikes = high risk of "stalling"; use a power strip with protection/UPS.
- Copies with newer protection - will only accept images signed for the brand/region.

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What I need from you to select the correct batch .
Post in thread (ID 4129784):
- Photo of rear TV label (full model, SN, version).
- Photo of the stickers on the motherboard (TP.HV352T.PB753 + all stickers with codes).
- Panel code from the matrix (photo or transcribed exactly).
- Symptoms and current software version (if readable), date of problem.
Based on this, I will check for compatibility and indicate a specific safe image or alternative.

If you already have an "allupgrade_an12_..._sos.bin" file, upload its checksum (SHA-256/MD5) - I'll compare if it's the right package for your setup.