Hi Naeem, The digest has to be encrypted as well, and based on the plaintext bootloader not the ciphertext version. ie espsecure.py digest_secure_bootloader --keyfile secure_boot_key.bin --output ./build/secure_bootloader.bin ./build/bootloader/bootloader.bin espsecure.py encrypt_flash_data --keyfil...

If you set the bootloader to DIO mode instead of DOUT, and 20MHz instead of 40MHz, does it make any difference to the log output? (These settings are under the Serial Flasher Config menu for ESP-IDF menuconfig, or in the Arduino IDE menus.) (The PICO should work at the settings you have, but it's no...

Hi all,

Please update to the latest master branch. We've fixed some ldgen linker script generation issues, but also improved the error messages so if still fails there should be more information given about why.

Angus

Hi permal,

So you don't see any CMake warnings about git submodules when CMake runs? (git submodulate update --init --recursive should be all up to date).

Can you please run "make VERBOSE=1" and post the full command line used for linking?

Angus

Thanks for the update. Can you please post the output of "python -V" and "pip list", as well?

Angus

Hi Frank,

That's unusual. Could you please post the full output from "idf.py reconfigure build"?

Thanks,

Angus

Hi snahmad75, Working backwards from the error in the log: E (57) esp_image: image at 0x20000 has invalid magic byte W (61) esp_image: image at 0x20000 has invalid SPI mode 38 E (67) boot: OTA app partition slot 0 is not bootable E (73) esp_image: image at 0x1f0000 has invalid magic byte W (79) esp_...

Hi zhaogan, Something unusual is happening with your Python installation. There are some Python packages installed in c:\users\administrator\.local\lib\python2.7 (this is outside MSYS2 so it may be the result of another Python install on your computer) and some are installed in c:\msys32\mingw32\lib...

WiFive, the output of "espsecure.py digest_secure_bootloader " is the digest with the image appended, so secure_bootloader.bin should be OK to flash at offset 0x0. The steps you've outlined are not the recommended way to enable secure boot (the instructions recommend letting the bootloader burn ABS_...

The last thing to do is to use a straight up FTDI chip without the "auto_download" circuit and modify Esptool.py to generate the correct signal. This should actually "just work" without modifications if the FTDI is wired up as shown here: https://github.com/espressif/esptool/wiki/ESP32-Boot-Mode-Se...