I try pre_encrypted_ota sample with SDK 4.4.6 by cherry pick two merge from SDK 5. Origin project working fine and the pre encrypt ota can be update from the test server. But to use it I must use custom partition to support secure boot and flash encryption. I just test by apply new partition table: ...

Docs not mention, what is the key to encrypt the flash along side with secure boot? Please see here: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/security/flash-encryption.html#using-host-generated-key This is what I had asked in my earlier post too. If you did not program the flash ...

I have devices that FLASH_CRYPT_CNT is 1 or 127. For the [FLASH_CRYPT_CNT b]1[/b] I try disable Flash encryption with espefuse.py burn_efuse FLASH_CRYPT_CNT and espefuse.py burn_efuse FLASH_CRYPT_CNT 2 with no luck it show the error: For flash encryption release mode, all possible bits in the crypt...

Hello, Apologies for the delayed response here. Looking at the efuse summary, device has both flash encryption and secure boot (v2) enabled. Hence, it is expecting encrypted artifacts (e.g. bootloader, partition-table etc.). Flashing plain-text bootloader won't help here and it will result in the e...

Still no answer. I have bricked 4 chips. Google all the web, problem still not fix.

Hi, I try to enable Secure boot v2 with flash encryption for ESP-WROOM 32, V3.1 follow this guide https://docs.espressif.com/projects/esp-idf/en/latest/esp32/security/secure-boot-v2.html. This is my custom config: # # Serial flasher config # CONFIG_ESPTOOLPY_FLASHMODE_DIO=y CONFIG_ESPTOOLPY_FLASHMOD...