With the bootloader locked down, our next sprint focuses on the . We’ll be pushing the limits of the onboard processing power to see how much we can squeeze out of the BR23 architecture.
| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | Bad hash ... | The U-Boot binary was corrupted during flash. | Re-flash the image. Check your SPI/eMMC connections. | | Signature check failed | The public key in U-Boot doesn't match the private key used to sign. | Rebuild the FIT image with the correct key pair. Ensure no key substitution occurred. | | No signature found in config | The ITS file omitted the signature node. | Revisit your ITS file. Enable CONFIG_FIT_SIGNATURE in U-Boot config. | | Unknown boot device | The bootloader can't find the storage medium. | Check your U-Boot bootcmd environment variable. Ensure br23uboot100 has proper SPI/eMMC drivers. | br23uboot100 verified
To understand the file, we have to break down the nomenclature used by Bose engineering: With the bootloader locked down, our next sprint