Thread: Honda Goldwing 2006-2008 Navi GPS Firmware Update Versions 4.60 & 4.70

This fw is for HWID 0504, the US navi units are HWID 0265. Maybe you can cross-flash the fw with the original HWID but it may cause problems if the physical hardware is not identical. You could try a custom GUPDATE.GCD combining the US boot.bin with the EU fw_all.bin and see if that will flash ok. You may have to try to force the update using the reset method from this post [Only registered and activated users can see links. ]. This is risky stuff because afaik the GW navis cannot be accessed in preboot mode to flash with an .rgn file, so if you brick it your navi may well be dead. I know ppl have gone the other way to get NT map capability (ie loaded US fw 4.6 to EU units) but some have been disappointed with the overall results, especially those who drive on the left (UK etc.). No one posting here has so far reported flashing EU on a US navi. As for the RU voice you are right, it won't work on your US navi because the voice file is not present. It would have to be added somehow, and it may not be possible to do easily. Think carefully before attempting this flash.