Map installation

[simonbrew]

Hi - my second posting in one DAY! , so I hope protocol is OK.

I have a Tomtom GO720 with a current map update subscription.

I have 2GB memory + 4GB flash drive.

Tomtom Home2 v 2.8.3.2499 & device s/w is at level 9.401

I bought a new 4GB flash drive to enable me to store the whole of Western Europe on one drive, rather than enduring the hassle of changing zones.

My PC & HOME2 both recognise that the GO720 has a 2GB drive of internal memory which is full of data including one zone of Western Europe, & a 4GB drive which is empty. Using a modern laptop with built-in flash reader, I can see that the 4GB flash drive is OK, clean, empty and correctly FAT32 formatted.

When I use HOME2 to load the Western Europe map onto the flash drive, it starts the copy process then fails with message

Cannot create folder I:\Western_Europe

If I look at the flash drive using the PC, I see that the folder has been created but there's nothing in it. If I then create the folder on the flash drive using my PC, and re-insert it into Tomtom, I get error message

Cannot create folder I:\Western_Europe\brand\

So for some reason the Go720 cannot create folders (or maybe cannot write data) onto my flash drive. What's wrong? Charts show that 4GB is OK for this GO720.. I have checked that flash drive is NOT read-only.

How do I get HOME2 to use the 4GB drive?

[simonbrew]

PS - I have SDHC 4GB card which is OK for this device according to the website.

[Lupus1 Elite Voyager]

Hi,

please format the card in FAT32 and afterwards insert it in your device. Afterwards please install the Navcore application to the SD card and at least one voice.

Also please make sure that the card isn't locked. Then try installing the map again. To my knowledge it should work afterwards.

Regards

Lars.

[simonbrew]

OK - will do, Next questions:

1) Where do I find a clean copy of Navcore. In the file ttgo.bif in the TT memory I have ApplicationVersionVersionNumber=9401 so I think I need that version? I've seen some criticism of this release on the blogs, so perhaps I should use an earlier version - if so which for TT GO720?

2) How do I install Navcore onto the SDHC card?

3) Can I just copy any/all voices from TT memory onto the SD card into the same foldername?

Thanks Lars - I appreciate your help...

[Lupus1 Elite Voyager]

Hi,

usually the Navcore application should be made available via the TT HOME application as soon as you connect your device to it. If you've got the FAT32 formatted SD card inserted to your device and selected the SD card as being the active memory TT HOME should automatically offer you the installation of a Navcore application. After installing the Navcore application you'll need to restart your device and maybe repeat the step of updating that application until there are no more updates pending.

Just copying the voices from TT memory to the SD card should work. That would also be a possibility to get the Navcore application to your SD card if it doesn't work as described above. By removing it afterwards and reinstalling it you should be ok afterwards.

Please don't forget to create a backup of your device before starting any updates. I recommend doing this using Explorer and not TT HOME.

How to create a backup of your device (hyperlink)

Regards

Lars.

[simonbrew]

I still can't get HOME2 to download Navcore onto my SDHC card.

I have installed  a 4GB blank, FAT32 formatted SDHC card in the slot.

When I connect via HOME2 2.8, it offers choice of internal memory or SD card. If I select internal memory, it says "no items available" (which is correct).

If I reboot, reconnect, restart HOME2 & select SD card, it takes a few seconds allegedly trying to load something, then also says " no items available".

What next please?

[simonbrew]

Sorry but further queries:

1) In earlier reply, you said:

"Just copying the voices from TT memory to the SD card should work. That would also be a possibility to get the Navcore application to your SD card if it doesn't work as described above".

I can see the voice files in internal memory so I'm sure I would be able to copy them, but I can't see any file or folder called Navcore. Where is Navcore in internal memory?

2) If I copy Navcore and voices as described above from internal memory, do I copy navcore firet, or voices or maybe it doesn't matter?

3) You say: "By removing it afterwards and reinstalling it you should be ok afterwards."

What should I remove and re-install? The SD card, Navcore, voices or what?! Sorry for ignorant questions, but I'm struggling with this - Documentation fully supports what I'm trying to do and it surely should be a simple task to put the map onto the SD card and get it recognised by the TT?

[Lupus1 Elite Voyager]

Hi,

no problems. That was a fault from my side. Sorry for not being preciser. I just noticed how it can be misleading.

To get the data to your SD card just copy the complete content from the devices internal memory to your SD card. Make sure that the hidden files and folders are being shown so you'll be able to copy them as well. You can copy all those files at once.

The application won't be found in a specific folder as the maps or voices. Therefore just copy all files and folders to the SD card.

Concerning point 3 I spoke about removing the Navcore application from your SD card using manage my device and to reinstall the application afterwards as it might be that you get told you've got a wrong application installed after only copying it. Maybe you'll also get the correct application offered afterwards for a direct download to your card.

If that doesn't work as well I'll have to get some more information myself.

Regards

Lars.

[simonbrew]

OK - next problem...

Thanks for advice..

Using Windows Explorer I tried to copy all files and folders from internal memory drive J: to SD card I: . It appeared to copy a few files/folders and I then got error message

"file folder art is too big for destination file system." and this is also true for 77 other files/folders.

I've re-checked that format of BOTH disks I & J is FAT32, but TT must modify the file system somehow to get round this problem.

HELP!!

[Lupus1 Elite Voyager]

Hi,

I just had to inform myself a bit.

Did you install Navcore 8.350 or 8.351 to your device prior to Navcore 9.xxx? If not, the correct bootloader for supporting 4GB SDHC cards is still missing. You can add this bootloader to your device by downloading the file linked below and then extracting the 'system' file to your device. That file is the bootloader v5.5120 which you'll need to enable SDHC card support.

Navcore 8.351 Go x20 .cab file (hyperlink)

You'll be able to extract that file using WinRAR.

Afterwards have a look if the memory card is being recognized. Also it might help if you've got an empty SD card to start your device once with the inserted SD card so the ttgo.bif file is already created before connecting the device to the computer and searching for application updates.

Regards

Lars.