: Because multi-part archives (like part01.rar , part02.rar ) must all be present to extract the firmware, ensure you download all parts from the same thread or source to avoid version mismatches. 2. Streamit IRIS Devices

: You can find instructions and firmware downloads on the Streamit Support Page . They typically use a secondary controller update method via the nRF Connect for Mobile app. 3. I.R.I.S. (Canon Group) Scanning Products

If the product is an IRIScan or Readiris software component:

: These repositories often host older or multi-part archive files for specific receiver models.