# Device Firmware Upgrade ## Identification A standardized mode for transferring firmware to a device. The notebook contrasts DFU with over-the-air updating and places it beside USB loaders and FPGA tooling. ## Notebook evidence - [[Scanned_20260730-1946|Scanned_20260730-1946]], PDF pages 3 and 10. ## Relationships and evidentiary boundary [[Custom firmware]] · [[Cypress EZ-USB FX2]] · [[Hardware Provenance]]. The notebook occurrence records research context and page-level proximity. It does not by itself establish ownership, deployment, compromise, coordination, or present-day status.