Tom tom910 red cross over the memory card

Internal memory was damaged when dropped.. OR the SD card if it has one. Replace the sd card and copy data over from back up

your tom tom need a sim card what go on the side of it that y you got the red cross through it please go back to the shop where you got it and ask for you tom tom sim card then it will work 100%

The memory card you have inserted is damaged and needs to be replaced

This problem is due to the memory card not containing the TomTom application or map. To update the application onto the memory card, Connect the device to your computer. Open the TomTom Home application. Click on 'Update My Device'. This should then install the application onto the SD card. Alternativly, you could perform all the steps above without the SD card in the device, this will install the application onto the internal memory. Note: you may also need to install your maps, voices, etc after you updat.

This problem is due to the memory card not containing the TomTom application or map. To update the application onto the memory card, Connect the device to your computer. Open the TomTom Home application. Click on 'Update My Device'. This should then install the application onto the SD card. Alternativly, you could perform all the steps above without the SD card in the device, this will install the application onto the internal memory. Note: you may also need to install your maps, voices, etc after you update.

http://www.tomtom.com/support/index.php?Language=1&query=red+cross&FID=1898

Red cross issue:
http://www.tomtom.com/support/index.php?Language=1&query=red+cross&FID=1898

Device not recognised by PC:
http://www.tomtom.com/support/index.php?Language=1&query=connect+to+home&FID=7375

Device not recognised by TomTom Home:
http://www.tomtom.com/support/index.php?Language=1&query=connect+to+home&FID=7375

What I can suggest is download the drivers & software first .. Than buy another brand of memory card.. I had same issue with a Mp3 player that I had purchased.. It wouldnt recognise the card even though it was setup properly.. I returned it and baught a different brand.. Worked Like a Charm..

#2 If you for some reason cant get the software to install or work properly, I suggest you buy a new Tom Tom (( EXACT MODEL )) and than take the old Tom Tom put it in the new box and take it back with your receipt and tell them this doesnt work.. Ive done that b4 with a Speaker system and it wasnt an issue with the store...

Good Luck !

Is this a new unit? How long have you had it?

I had one for 6 months and had to return it to the store because it stopped locking onto satellites. It sounds like the hardware fault. Did you try the reset button? It returns it to its default factory settings.

Regards,

Spare head 2.

Find solution here:
http://www.tomtom.com/support/index.php?Language=1&query=red+cross&FID=1898