Changhong LED32TC1700E Firmware Download Guide

User question

JE VEUX LE FIRMWARE DU MODELE LED32TC1700E

Artificial Intelligence Response

Direct answer to the question

• There is no public, manufacturer-hosted download link for the firmware of TV model LED32TC1700E (commercially sold under brands such as Grandin, Telefunken, Continental Edison, etc.).
• The only safe and legal ways to obtain the correct firmware are:
– Request it from the brand’s after-sales service or an authorised repair centre.
– Retrieve a verified “dump” (.bin) from specialised repair forums (Elektroda, Remont-Aud, Triacaffaire, Depanetout) or buy a pre-programmed SPI flash (e.g. from MJK Electronics).
– Supply your own board (TP.SIS231.P83) and panel IDs when asking, so the community can give you the exact binary.

Detailed problem analysis

1. Hardware genealogy
   • LED32TC1700E is typically built on a Changhong / CVT chassis TP.SIS231.P83 with a 32″ HD panel (often M320X13-E1-L or VES315 type).
   • Firmware is tied to:
   – Main-board model (e.g. TP.SIS231.P83, TP.SIS231.P83-01).
   – LCD panel parameters (timings, EDID, Gamma tables).
   Using the wrong pair bricks the set, shows an inverted image, or disables audio/tuner.

2. Why the file is not public
   • The ODM (Changhong) delivers binaries only to distributors; Grandin/Conforama and others rarely upload them.
   • Firmware is copyrighted; redistribution requires permission, so forums keep the files behind registration/tests.

3. Locating a trusted dump
   a) Forums (free, but registration required)
   – Elektroda: “Changhong LED32TC1700E Firmware Download Guide” (thread ID 1045018)
   – Remont-Aud: section “Grandin_LED32TC1700E_TP.SIS231.P83” (direct link needs login)
   – Triacaffaire / Depanetout: topics 1784 and 1700 (FR) with working dumps and installation feedback
   b) Paid or hardware solutions
   – MJK Electronics sells a 25Q64 SPI pre-programmed for LED32TC1700E.
   c) Official route
   – Conforama (Grandin) customer service: sav@conforama.fr, require full model + serial + board reference.

4. Verifying compatibility
   • Remove back cover (AC unplugged 10 min).
   • Note the sticker on the main board (TP.SIS231.P83-xx) and the LCD panel label.
   • Post these data when requesting the dump; forum members will match CRC/version.

5. Typical USB reflash procedure (for TP.SIS231)

   1. Format ≤8 GB USB to FAT32.
   2. Copy the “*.bin” file plus “upgrade_loader.pkg” (if supplied) to root.
   3. TV off → insert USB → keep VOL- or OK on side keypad → plug mains.
   4. LED blinks fast → wait 3-5 min → set reboots → remove USB.
      • If bootloader itself is damaged, resort to in-circuit SPI programming (CH341A or RT809H).

6. Common pitfalls
   • Wrong region firmware → DVBT scan fails.
   • Power loss during flash → corrupt boot, needs external programmer.
   • Using exFAT/NTFS → TV won’t detect the file.

Current information and trends

• Repair communities increasingly exchange full NAND/SPI dumps rather than “official” updaters, because manufacturers close public FTPs.
• Low-cost USB programmers (CH341A + SOIC8 clip) make board-level recovery accessible to hobbyists.
• Vendors such as Vestel now sign images; Changhong-based sets (TP.SIS231) still accept unsigned dumps, simplifying repair but raising piracy risks.

Supporting explanations and details

• TP.SIS231 is a single-chip SoC from MStar/SigmaStar with integrated DVB-T/C tuner. The external 25Q64 (64 Mbit) holds bootloader, kernel, and rootfs.
• The panel timing block is stored in the last 256 kB; that’s why matching panel ID is mandatory.

Ethical and legal aspects

• Firmware is proprietary; sharing it publicly may infringe copyright.
• Always prove ownership of the device when asking for a dump.
• Flashing voids warranty unless done by an authorised centre.
• Ensure electrical safety; open frame TVs expose lethal voltages.

Practical guidelines

• Gather: model, serial, board PN, panel PN, original software version (Menu → Info).
• Register on one of the cited forums, attach clear photos, and politely request the dump.
• Prefer a UPS during flashing; voltage dips cause half-writes.
• Keep the original dump (read-back with CH341A) before writing the new one.

Possible disclaimers or additional notes

• All links may require registration; forum moderators sometimes remove attachments.
• Variants with MB95/VS.DP12 boards exist; the procedure/file differs.
• Some units shipped with vestigial “hotel mode”; loading a retail firmware can disable service menus.

Suggestions for further research

• Investigate open-source “mstartool” for extracting/editing the TP.SIS firmware header.
• Explore whether SigmaStar’s secure boot will be enforced in future revisions, complicating repairs.
• Monitor Elektroda and Badcaps for updated dumps when new panel revisions appear.

Brief summary

The only reliable path to the LED32TC1700E firmware is via the manufacturer’s support channel or specialised repair forums that host user-extracted dumps for the TP.SIS231.P83 board. Collect your board and panel references, request the exact .bin, and follow the FAT32-USB or SPI-programmer flashing procedure while respecting legal, safety, and compatibility constraints.

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.