FAQ
TL;DR: One UNITED LED29X11 here boot-loops on the logo; "write a new spiflash with this bin file." The quickest fix path is to back up and reprogram the SPI flash with a known-good dump, then retest. For TV repair techs hunting dumps and recovery steps. [Elektroda, billobirillo, post #19368157]
Why it matters: It helps repairers decide when to reflash firmware versus chase hardware faults to stop boot loops.
Quick Facts
- Symptom: UNITED LED29X11 with panel TC290BPE1-MA1 reboots at the UNITED splash (logo loop). [Elektroda, johndor127, post #19365768]
- Primary guidance centered on SPI flash reprogramming with a known-good BIN. [Elektroda, billobirillo, post #19368157]
- USB update attempt using led29x11.BIN on a FAT32 stick did not auto-start. [Elektroda, piciolo2, post #19444226]
- The UNITED set discussed was ultimately returned unrepaired. [Elektroda, johndor127, post #19444349]
- Related case: Thomson 32HC3106 remained on blue LED even after swapping BINs. [Elektroda, johndor127, post #19444913]
How do I fix a UNITED LED29X11 stuck on the UNITED logo?
Start with the SPI flash. Expert advice: "write a new spiflash with this bin file and let me know if it works." Back up your dump, program a verified BIN, and retest boot. If the loop persists, continue diagnostics. [Elektroda, billobirillo, post #19368157]
What’s the quickest way to read the SPI flash to share a dump?
How-To: 1. Power down and access the SPI flash on the mainboard. 2. Read the spiflash and save the BIN. 3. Post the defective file for review. As one expert put it, "read the spiflash and post the defective file." [Elektroda, billobirillo, post #19367245]
Why doesn’t the USB firmware update start from my FAT32 stick?
In this thread, copying led29x11.BIN to a FAT32 USB key did not trigger any update sequence. The TV stayed stuck on the UNITED writing without progress. That observation suggests the board did not auto-boot from USB in that attempt. [Elektroda, piciolo2, post #19444226]
I flashed a new BIN and nothing changed—what does that imply?
A member reported, "it’s doing the same with your bin so it’s not the bin faulty," and the set remained on a blue LED without powering on. That behavior points toward a non-firmware fault on the mainboard or power rails. [Elektroda, johndor127, post #19444913]
What details should I include when requesting a dump for this model?
Share the brand, exact model (LED29X11), panel code (TC290BPE1-MA1), and the symptom (logo loop). That level of detail mirrors the opening post and speeds up matching the right firmware. [Elektroda, johndor127, post #19365768]
Was a working UNITED LED29X11 dump confirmed in this thread?
No. The original poster later returned the UNITED TV to the client without repair. No confirmed working dump was posted for that unit in this thread. [Elektroda, johndor127, post #19444349]
Where can I get firmware dumps if attachments aren’t enough?
One member referenced an external firmware portal with many BINs but strict membership requirements. They noted the site holds many dumps, yet joining can be cumbersome. Consider community-shared files first, then such portals if needed. [Elektroda, johndor127, post #19448329]
Thomson 32HC3106 stuck on blue LED after flashing—what next?
In the related case, swapping to another BIN produced the same result: blue LED and no power-on. That suggests the issue isn’t firmware. Investigate the mainboard and power circuitry next as the firmware path was exhausted. [Elektroda, johndor127, post #19444913]
What USB filename and format were tried for UNITED LED29X11?
The report used led29x11.BIN placed on a FAT32-formatted USB stick. Despite that, the set did not start any update routine. This exact combination was explicitly mentioned in the thread. [Elektroda, piciolo2, post #19444226]
What’s the success rate of fixing a logo loop with a single reflash here?
In this thread, one reflash attempt did not change the symptom. After writing a BIN, the TV kept looping at the logo. That single data point shows reflash isn’t always sufficient on its own. [Elektroda, johndor127, post #19368271]
Should I try another BIN if the first one fails?
Yes. Members sometimes share alternate working BINs for related models. For example, a "working bin file for 32HC3106" was offered to test. If multiple BINs fail, escalate to hardware checks. [Elektroda, billobirillo, post #19445163]
Can intermittent start-ups indicate more than firmware?
Yes. One set started normally at times, then stayed on a blue LED at other times, even after a BIN change. That intermittent behavior points toward hardware instability rather than pure firmware corruption. [Elektroda, johndor127, post #19444913]
