Thank you for your response. It took some time to investigate. The peripherals in use are I2C, SPI, and GPIO. I ensured that everything is disabled before calling esp_ota_set_boot_partition. However, I'm still encountering the same error.

I have already submitted this issue on GitHub ( https://github.com/espressif/esp-idf/issues/15380 ), but I wanted to reach out here as well in case anyone has additional insights or suggestions I am trying to achieve firmware update on device with secure boot and flash encryption enabled. Update dat...