How to import dives from a Cressi dive computer

Worth knowing

• Cressi does not have one app, it has three, and picking the wrong one is the single biggest time sink. PC Interface covers the cradle generation (Leonardo, Giotto, Newton, Drake). UCI plus the Cressi phone app cover the watch-style generation (Goa, Cartesio, Neon, Nepto, King, Michelangelo, Donatello, Raffaello, Leonardo 2.0). DiveSync covers the DaVinci alone.
• None of the older computers has Bluetooth inside the watch. What Cressi sells as a Bluetooth interface is an infrared-to-Bluetooth bridge that clips onto the case, reads the display window over IR, and relays to the phone. It runs off its own CR2032 so the computer's battery is untouched.
• There are two different Bluetooth dongles and they are not interchangeable. Cressi's own product pages list one for Cartesio, Goa, Neon, Nepto and King, and a different one for Donatello, Giotto, Leonardo 2.0 and Michelangelo. Buying the wrong shape is a common and expensive mistake.
• The DaVinci is a clean break from everything above: real Bluetooth in the watch, paired with a passcode, and served by DiveSync, an app written by ProAsia Design that also supports XS Scuba and Oceanpro computers. The Cressi app will not see a DaVinci and DiveSync will not see anything older.
• Getting dives out as a file is where Cressi falls down hardest. The PC Interface manual states that a selected dive can be exported only as a plain text file, one at a time, or printed. Inspecting the UCI package shows a PDF generator but no standard-format writer. The phone app has no export at all. Nothing in the Cressi ecosystem produces UDDF, UDCF or a CSV dive log.
• macOS support is effectively over. The newest Mac build of PC Interface stops at Catalina 10.15. UCI 1.1.1 for macOS is dated April 2022 and its binary is x86_64 only with a minimum system of 10.9, so on any Apple Silicon Mac it runs under Rosetta 2, and neither program is notarised for a current system.
• Cressi's own USB driver deliberately presents the interface as a USB-only device with no COM or tty serial port. That is why Subsurface and anything else built on libdivecomputer cannot see a Cressi out of the box: the generic FTDI or Prolific PL-2303 driver has to be taught Cressi's custom VID/PID first, and Cressi's own driver has to be uninstalled because two drivers cannot claim the same device.
• The web presence is mid-migration and unreliable. During testing www.cressi.com returned a 301 to the Shopify store on one attempt and a 502 on another. The support subdomain new.cressi.com is serving a TLS certificate that expired in February 2023, so browsers refuse it outright.
• Every legacy manual URL circulating online is dead. The old cressiusa.com/easyUp/file/instructions/*.pdf links, which are what most search results and forum posts still point at, now 301 to a generic Shopify page instead of a PDF. The live manuals are the ones on the Cressi America manuals page.
• Cressi America's page lists the old PC Interface installers under the DaVinci heading. That contradicts the DaVinci's own manual, which specifies Bluetooth and DiveSync. Treat it as a copy-paste error on their site, not as a supported path.
• Cressi no longer publishes a user manual for the Drake, Archimede I, Archimede II or Edy anywhere on the current site. For Archimede and Edy the only surviving documentation is the manual for the legacy PC Logbook program on Cressi's storage bucket, which nothing on the live site links to. There is no verified Drake manual left at all, even though PC Interface still officially supports it.
• Windows users need the right build: Cressi ships 2.0.2.42 specifically for Windows 11 and keeps 2.0.2.41 for XP through 10. Only the older download appears on the current support hub, so the Windows 11 build is reachable only from the legacy software index.
• If the computer connects but naming it or saving the profiles silently fails on Windows, that is a permissions problem and Cressi's documented fix is to relaunch the program as administrator. It is not a broken cable, which is where most people go next.