Hi,
I'm new to this forum and I'm impressed by the knowledge and the work.

I own a TomTom One and I am trying to update it. Of course it's not going without hickups. The device is a bit different from what I find about the One, which makes things a bit confusing. When I connect it to my laptop it shows itself as "TomTom ONE (v4)". The ID starts with "Z3".
When I compare this to the "List of TT-devices" (thanks PeterHimself), it shows : "EoL Z3 NAV2 TomTomHome ONE New Edition (v4) (CorkO) SD 7.903 5.3029 EUR USA Austr". This seems ok, it fits with the software info on my device. But when I compare it to " TT serial number - TT device name lists" (thanks biggerdave) my device is a "ONE 2nd Edition + SD 2GB". Last but not least I compared it with "Specs listing" (thanks Orni) and from all the devices characteristics it seems to be a "One New Edition Regional / Europe".
Maybe this is not so important, but I just don't know. Maybe I should stick with the "New Edition".

I found out, that the device accepted 2GB SD-cards max. Not enough, because I like to install Europe-1020. I tried 4GB (obviously SDHC), no succes. Than I found out about a new bootloader, downloaded new bootloader for ONE, followed the procedure and bingo, now it accepts SDHC-cards. Bootloader is 5.5120 now. Didn't try to the max, but 8GB SDHC works just fine.

Downloaded Europe-1020-9272 according to "Compatible Chart v1020 (thanks Orni), because I'm on navcore 7903. Installed it with FastActivate, but than I got 'incomplete maps' .dct error, which seems related to a wrong meta-code. Makes sense, because there seems to be no meta for "9272". I tried to use one of the available meta's, but I could not get it working. I like to download and install a Europe-1020 version with a meta-code now, but it looks like I need a different navcore (9.0xx) for those versions. My problem now is, that I don't find navcores for my model and that I don't know if I can use a different one.

So, in short:

-can anybody enlighten me about my model.

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-which navcore (9.0xx and beyond) might I use for my device.
-and of course any other info is very welcome.

Thanks to all the posters I didn't mention.
CJB.

ciebie Reviewed by ciebie on 31st December 2018. TomTom ONE model and navcore questions Hi, I'm new to this forum and I'm impressed by the knowledge and the work. I own a TomTom One and I am trying to update it. Of course it's not going without hickups. The device is a bit different from what I find about the One, which makes things a bit confusing. When I connect it to my laptop it shows itself as "TomTom ONE (v4)". The ID starts with "Z3". When I compare this to the "List of TT-devices" (thanks PeterHimself), it shows : "EoL Z3 NAV2 TomTomHome ONE New Edition (v4) (CorkO) Rating: 5