There are no official updates available until now. It looks like Honda philosophy regarding system updates is completely different than customers' expectations. The only solution to have a recent maps is to transfer unlocked map: gmapsupp.img with respective gmapsupp.unl and empty gmapsupp.gma. All required files should be located on USB flash drive under /garmin folder with the same structure as it's done during regular update. However I encountered a problem with a proper unl file. I tried to use JetMouse Garmin Keygen v1.5 with Checksum Fix but codes generated didn't work despite several attempts.