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Your satnav might be affected by the GPS Week Number Rollover. To check your device, please click here.

My device does not keep its settings. What should I do?

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Note: This FAQ applies only to devices that connect to TomTom HOME.

If one or more of the following errors occurs, there may be too many files in the flash memory on your navigation device:

  • The settings are not saved when you restart your navigation device.
  • You cannot activate the map on your navigation device, even though you have a valid product code.
  • You have to enter the passkey every time you connect your navigation device to your mobile phone.

To fix the errors, you must run the TomTom Clear Flash tool. This tool clears the flash memory on your navigation device.

Select your operating system:

  • Windows

  • Mac OS X

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