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[GH-ISSUE #544] Error installing Tag Flasher firmware on ESP S2 Mini #3109
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Reference: starred/OpenEPaperLink#3109
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Originally created by @leMax6608 on GitHub (Jan 22, 2026).
Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/544
Hello,
I’m trying to flash my ESP32-S2 Mini using the OpenEPaperLink Tag Flasher website (https://install.openepaperlink.de/
), but I keep getting an error during the process.
Has anyone experienced this before or can help me troubleshoot what might be going wrong? I would really appreciate any help, as I’m eager to get my tag flashed and working.
@Strizzi74 commented on GitHub (Feb 23, 2026):
Getting the S2 in flashmode is rather tricky. Had the same issue in the beginning.
Maybe you can try to hold boot button when powering on and release it then.
You can also try to press it befor hitting "flash" in the webinterface.
This may be different on some ESPs.