Matt888

Thanks @Tell, I'll give it a go. I've phoned a local reputable car audio firm and they've confirmed that, if it goes wrong, the unit is simply removed from the car and thrown away because there is no longer any hardware or software available. At least I know what I'm up against.

Hi, I've followed all the rules, e.g. 32GB SD card, Fat32 format. I have downloaded the files (one text file, one MIB 1 folder, one MIB 2 folder). I have a 2015 Superb Mk2 with a Columbus MIB2. I assume I just switch on the Columbus unit with the car ignition off, inset the SD card and follow whatever prompts appear on the screen to enable the unit to upload the latest maps for the UK and Europe. I'm not a techie person but as far as I can see from this thread, it should be fine for me to just go ahead with the update. Are there any other caveats? It appears that, if the update fails for any reason, my exisitng map data (factory installed) will be lost forever. Skoda no long support the Columbus unit, so there's no prospect of a dealer fixing it. If the update fails, what are the options for fixing the satnav, apart from thowing it away and spending stupid money on a new one? Thanks.