I have an old go720 which I have just had repaired .
Tom Tom home update tells me that my SD card is not big enough (4gb) what SD card do I need to download my whole Europe map, or at least western Europe
I believe you cannot update to a larger card.
My GO 930 cannot read micro SD cards and I have not found a larger plain SD card.
If you have a larger micro SD card, put it in its holder and see if your 720 recognises it.
Maybe so but I could not find a plain 8GB card 2 years ago when TomTom screwed up my internal on 3 of 4 quarterly paid for updates.
I see Amazon now offers 16GB cards but I am not certain that is not a micro in an adapter.