ESP32 flash encryption

verus2281
Posts: 2
Joined: Sat Nov 25, 2023 4:50 pm

ESP32 flash encryption

Postby verus2281 » Sat Dec 16, 2023 1:56 pm

Hi, I was trying to encrypt my esp32-pico-d4 board. I tried to encrypt it through esp-idf cmd, the process followed the instructions perfectly, but after the encryption process the code stopped working (and I didn’t get any error either during encryption or after, the code just stopped working), I rechecked the fuses, flash memory, everything was perfect, but the code just doesn’t work. Then I changed a firmware, I wrote simple blink code and tried with it, the same problem, everything was fine but firmware isn't working. then I tried with flash download tool, with encryption disabled everything was working fine, and when I enable encryption firmware stops to work. So I bought esp32-C3 board and tried again the same encryption process, and it works fine. I also found out that esp32-C3 has internal memory, and esp32-pico-D4 uses an external memory. Also esp32-pico-D4 is dual core processor. Maybe an encryption process is different for esp32-pico-d4? If needed I can share photos of board, flash binary etc.

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