- re: "flash encryption is not enabled, and SECURE_FLASH_REQUIRE_ALREADY_ENABLED is set" hint: "Flash encryption required but not enabled in eFuses. Disable CONFIG_SECURE_FLASH_REQUIRE_ALREADY_ENABLED or enable flash encryption first." - re: "Initialization of Flash encryption key failed" hint: "Failed to initialize the flash encryption key in eFuses. Possible causes: no free eFuse key blocks, blocks already used, or key generation failed." - re: "Not enough free efuse key blocks" hint: "Insufficient eFuse key blocks for the enabled security features. Check which features are consuming eFuse blocks or use a new chip."