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by Timo Engelmann
Tue Jan 26, 2021 10:38 pm
Forum: General Discussion
Topic: Error: JTAG scan chain interrogation failed: all ones
Replies: 4
Views: 18229

Re: Error: JTAG scan chain interrogation failed: all ones

Hi there,

I had the same problem with a ESP32 adapter board.
ESP32_error_report.jpg
ESP32_error_report.jpg (193.98 KiB) Viewed 17861 times
After some hours without success I found a customer comment on Amazon:
ESP32_wrong_label.jpg
ESP32_wrong_label.jpg (64.88 KiB) Viewed 17861 times
And this was the soultion for my problem.
Maybe it is helpful for other users.

Timo