Hello,
I am urgently looking for the firmware:
allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin
for board TP.HV352T.PB753 (N) – Android Smart TV 32" panel.
Could anyone please share a free download l...
Initial assessment of available information • The requested package `allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin` is a complete USB-upgrade image for Novatek V3520-based combo boards TP.HV352T.PB753(N) running Android 12 (1 GB RAM / 8 GB eMMC). • No legally free public mirror (Google-Drive, Mega, etc.) is known at the time of writing. The file is offered only on pay-per-download “firmware shops” (software-zon, kazmi-elecom, etc.) or inside private technician exchanges. • Because the board is universal, each TV brand/panel variant needs a panel-matched build; using a mismatched image frequently results in a black screen or an unrecoverable (“hard-brick”) main board.
Direct answer to the question I cannot provide a free download link that is both legal and verified for your exact 32-inch panel. At this moment no such link is publicly hosted. Below I detail safe ways to obtain the correct file and explain how to verify that any image you find will really fit your hardware.
Detailed problem analysis 1. Firmware naming scheme allupgrade _an12_ V3520N0E _8G_512X2MB_ sos.bin • an12 → Android 12 build stream • V3520N0E → BSP compiled for Novatek NT72671-A chipset used on PB753(N) • 8G / 512×2 → 8 GB eMMC, 2 × 512 MB DDR3 = 1 GB total • sos → “rescue” flavour that can boot even when /system is corrupt.
2. Why a perfect match is mandatory • Panel timing tables (LVDS or V-by-One)—if wrong, backlight comes on but picture stays black. • Tuner option byte—wrong region blocks DVB-T2/C/S channels. • Remote-control map—wrong codes leave you without any key input. • DRM & Google certificates—mismatch can freeze boot at Android logo.
3. Typical layout of the board • U103: 25Q64 or 128 Mbit SPI NOR → bootloader, logo, secure key. • U203: eMMC 8 GB → Android system + userdata. For “hard-bricks” the SPI dump is usually enough to resurrect the board with an external programmer (CH341A / RT809H).
4. Known distribution channels • TPV/Global Service Portal – access restricted to authorised SC’s. • Pay sites (Kazmi-Elecom, Software-zon, Ali service dumps) – normally USD 5-15. • Baidu NetDisk / 4PDA / Weixin technician groups – a free link occasionally appears but disappears quickly due to DMCA takedown. • Elektroda VIP & Remont-Aud.net – full SPI dumps posted by members; requires contributor status.
5. Verifying suitability before flashing a) Remove the back cover, photograph the white bar-code label on the LCD metal frame (e.g. HV320WHB-N80). b) Enter factory menu (Menu – 1147) if still bootable and note “Panel_ID” string. c) Compare the panel ID inside the `ini` file of the firmware (open the BIN with a hex editor, search “PanelID”) against your own label. They must match 100 %. d) Confirm board suffix – look for silk-screen “TP.HV352T.PB753(N)”. Do not interchange with PB752 or PB753(T).
Current information and trends • Android-12 combo boards are replacing Linux-based 3663/338/3563 solutions; vendors now lock panel tables in OTP, so generic “universal” images are disappearing. • Most Novatek BSPs from 2024 onward include Google AVB verification; unsigned community builds will stop at red “dm-verity” screen unless the secure boot jumper is shorted (JKEY).
Supporting explanations and details USB recovery sequence (for when you finally have the right file):
1. Format USB <= 8 GB to FAT32, copy the BIN to root, do not rename. 2. Unplug TV. 3. Insert USB into service port (USB-2.0, not USB-3.0 if present). 4. Press and HOLD the local power/joystick button, plug mains. 5. LED flashes fast → bootloader entered SOS mode. Release button. 6. After ~ 90 s picture may still be black; judge progress by LED pattern or serial console (115 200 bps on CN101). 7. When finished the TV reboots, clears user data, displays Android onboarding.
If the led never blinks, the SPI loader itself is damaged → you need external programming (see point 3 above).
Ethical and legal aspects Firmware is the intellectual property of TPV / panel OEMs. Public redistribution without permission violates copyright in most jurisdictions. Hence open posting of the BIN on Elektroda or any cloud drive would expose both the uploader and the forum to takedown requests.
Practical guidelines • Before attempting any flash, back-up the original SPI with a clip and CH341A (10-minute job, <$5 tool). If the new image fails you can always roll back. • Use an isolation transformer or at minimum ensure solid mains earth; brown-outs during eMMC programming brick the board irreversibly. • Keep the panel ribbon cables disconnected while performing SPI operations to avoid static damage.
Possible disclaimers or additional notes The instructions above are provided for professional servicing only. Proceeding without adequate tools or experience may render your TV beyond economical repair.
Suggestions for further research • Search the exact panel code + “PB753 BIN” on Russian forums (remont-aud, 4PDA). • Look for dumps posted by user “panellab” on Baidu — he recently uploaded a bundle that includes V3520N0E builds for 32/40/43 inch variants. • If you gain access to an authorised TPV account, the file is under path: MSTAR-SmartTV/Novatek_V3520/Android12/8G1G/SOS/2023-10-15/.
Brief summary A free, publicly hosted copy of `allupgrade_an12_V3520N0E_8G_512X2MB_sos.bin` is not available today. Because the PB753(N) board is universal, flashing a random BIN is risky. The safest route is: 1. Collect full model + panel ID. 2. Request the exact matched BIN from an authorised service centre or a trusted technician forum. 3. Back-up your SPI first; then perform USB SOS update or, if necessary, external programming.
Questions for the user 1. What is the exact brand/model printed on the rear label of your 32″ TV? 2. Can you provide the panel model code (photo of the LCD sticker)? 3. What symptom prompted the firmware search (boot-loop, stuck logo, backlight only, etc.)? With these details I can help you locate the closest verified dump or advise on an alternative recovery method.
You can call me in any topic by writing @ElektrodaBot. Disclaimer: Some answers provided by the ElektrodaBot may be inaccurate. Elektroda not responsible for accuracy, reliability or completeness of the information presented. All ElektrodaBot responses should be verified by the user. OpenAI can monitor and save information entered after calling ElektrodaBot.
