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18 July 2013, 09:10
No, just asked because what I am about to propose requires a backup of the map. If your brother deleted your UK map, instead of backing it up first and you don't have any backup either, most probably you will have to buy a new map. In which case you might be better off selling this old device and get a new one with free lifetime maps and memory card slot. Like this:
Would you mind to list the folders you have on the device's storage? I believe the maps are there yet, unless it was all mixed up. Worst case, try this:
1. Save everything from the device/card, using Explorer (or Finder on Mac), include all the files (hidden as well). It is also known as a manual backup: http://uk.support.tomtom.com/app/answers/detail/a_id/13354/" target="_blank
2. Then format the internal storage (or memory card, depending which one you use) of your device. Use the COMPLETE format, not the quick. http://uk.support.tomtom.com/app/answers/detail/a_id/12412/" target="_blank
3. Go to TT HOME, Manage my "DEVICE", delete everything from the hard drive and try the update again (in the new TomTom HOME app it is on the second page). At this point you might have to disconnect the device a few times and switch it ON/OFF to enable it to setup some important stuff.
4. Copy your voices and post codes back to the device (also the maps if that didn't download either).