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Heltec V3 (esp32 s3) install failed - invalid header: 0xffffffff [Web flasher] #67

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opened 2026-10-05 05:33:21 +02:00 by adam · 2 comments
adam commented 2026-10-05 05:33:21 +02:00
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Hi, I got new Heltec v3 board and i wasn't able to make it work with iGate firmware. Web flasher prompts successful flashing, but OLED stays black. I checked serial monitor and theres looped message "invalid header: 0xffffffff".

I also tried to use shell scripts provided in last release with same result. In order to make it work i needed to change esptool line by adding different chip type esp32-s3.

To check if this is hardware related issue i flashed meshtastic (also web-flasher) and it worked.

Am i missing something?

Hi, I got new Heltec v3 board and i wasn't able to make it work with iGate firmware. Web flasher prompts successful flashing, but OLED stays black. I checked serial monitor and theres looped message "invalid header: 0xffffffff". I also tried to use shell scripts provided in last release with same result. In order to make it work i needed to change esptool line by adding different chip type esp32-s3. To check if this is hardware related issue i flashed meshtastic (also web-flasher) and it worked. Am i missing something? <!-- github-sync-id:2288485124 -->
adam closed this issue 2026-10-05 05:33:21 +02:00
adam commented 2026-10-05 05:33:22 +02:00
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hi,

there is a know bug with the installers we provided for this board .... so the only way for this board (until a few days when we will upload fixes) is installing it from VSCODE

hi, there is a know bug with the installers we provided for this board .... so the only way for this board (until a few days when we will upload fixes) is installing it from VSCODE <!-- github-comment-id:2103445541 -->
adam commented 2026-10-05 05:33:23 +02:00
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HELTEC V3 is now added as a valid installer in new Web Installer v1.0.3

HELTEC V3 is now added as a valid installer in new Web Installer v1.0.3 <!-- github-comment-id:2174751286 -->
adam changed title from Heltec V3 (esp32 s3) install failed - invalid header: 0xffffffff [Web flasher] to Heltec V3 (esp32 s3) install failed - invalid header: 0xffffffff [Web flasher] 2026-10-27 16:29:34 +01:00
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Reference: adam/LoRa_APRS_iGate#67