I know this thread has been dead for a while, but ...
Has anyone figured out why the firmware update is not performing "as advertised" - install SD, close, and wait? I just got a Z130BT and tried the update - my unit currently has 3.000, so it's eligible. I put the SD in, close the face, and nothing happens.
What did the prior posters mean by "reboot"? Turn car off/on, ???
Thanks to everyone!
PS: I hope this speeds up booting! Yikes Doesn't seem to finish that before I arrive at my destination! LOL (sort of).