Secure OTA firmware updates with rollback for embedded devices

OTA is not file transfer. It is a critical transaction that decides whether a device remains recoverable after a failed update. This is an English DEV.to draft based on a Silicon LogiX technical article. The canonical source is linked at the end. Why it matters Connected products need updates for security, bug fixes and lifecycle maintenance. A fragile OTA implementation can turn a software bug into a fleet-wide hardware service problem. Architecture notes A robust OTA flow covers transport, ver