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Navigating with TomTom One

This page contains information on the TomTom One Satellite Navigation System, including a review and information on the lowest prices for a TomTom satnav.

TomTom One Refurb Offer


The TomTom One is an in-car or handheld satellite navigation system with a built-in GPS receiver - it's designed as a small, all-in-one solution for helping to navigate from A to B - It offers speech direction, real-time navigation, a touchscreen input, a rechargeable battery, Bluetooth (for receiving travel news data via a mobile phone if required), a USB for software updates, and of course a built-in GPS receiver. The first version of this rather neat unit became available on 21st November 2005 in the UK.

The TomTom One v2 was released in September 2006 and the TomTom One "Third Edition" was released in September 2007. More on the TomTom range at

TomTom One
The new-look TomTom One

Features of the TomTom One include:

  • Fast and reliable route planning with highly detailed mapping information
  • Automatic recalculation when you deviate from a planned route
  • Built-in GPS for automatic positioning, zooming, and guidance
  • Guidance by means of clear and timely verbal instructions and clear on-screen graphics
  • Control over your routes - avoid certain roads, find alternatives & plan multi-stop itineraries
  • Extensive lists of useful locations and landmarks
  • Destination selection by means of: Favourites, Point of Interest, tapping on a map or entering a street address
  • Support for live travel information (subscription service), and safety camera notification

TomTom One en route

TomTom One v2The TomTom One is available online from the following suppliers:

TomTom ONE review:

We've been using the TomTom One since 2005 and we're very impressed. We've also recently been given one of the newer TomTom One units, so we've been able to road test both the old and the new versions of the One. When we first tried the ONE, to an extent, we knew what to expect, as we've been using TomTom navigation software on a PDA for a while.

TomTom One Version 2Compared to our Pocket PC experiences, the TomTom One is pretty fast, and compared to the Go, it's essentially the same as the basic Go range, but in a smaller package and with a better GPS receiver.

The TomTom One offers the following:

  • Street-level mapping of your chosen country
  • A complete car navigation solution in one box
  • Smart and easy, door-to-door navigation
  • Highly portable - easy to fit and remove in seconds
  • Simple touch-screen operation
  • Crystal clear 3-D view, with a night-mode

For those new to TomTom in-car navigation, this box acts as a fully interactive co-driver. The One is attached to your car windscreen with the supplied suction cup and holder, and runs from its own battery or from the 12V cigar power socket.

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It fits easily into the included car mounting kit, which is simply mounted on your car windshield or dashboard. Just turn it on, and you've got access to the map data. The TomTom One has a touch-screen for route selection, and a built-in GPS receiver for spotting your location and plotting your real-time position as you drive. The One provides voice-guided instructions in a language of choice, and you can select from a range of available voices.

Tom Tom One Mounted
TomTom One attached to the windscreen

Once installed and switched on, you touch the screen to plan a route, based on your current location (obtained from the built-in GPS receiver), and choose a destination (by pointing to a location on the map, entering the postal address or picking a saved location).

TomTom Navigate To screen
The "Navigate To" screen

As you'll see from the screenshot above, you can search for a destination by address, from a favourite, or from somewhere you've visited before. You can also search for an address by entering in the full UK postcode, browsing to a point on the map, or ask to be taken to the centre of a city. It's a case of selecting an icon with your finger on the touchscreen, and then using the pop-up keyboard to enter the details of your location.

TomTom Selection

Selection of a UK destination is very straightforward. If you know the exact postcode or the full street address, you're driven to the door. Selection of an address by street can be slightly slow (Enter town, enter street, enter house number or junction) can be a little slow sometimes (not surprising really... there's a lot of streets in the UK!), but to be able to get a position for any UK address down to within a few feet, demonstrates the power of the TomTom solution.

TomTom Navigator for Windows MobileAs soon as you select Navigation Mode, things change - and you get to see a 3D view of where you are, which streets are near, and the direction you need to go in. Set out on your journey, and prepare to be impressed. As well as the clear route map, you get spoken voice prompts along the way - normally about 10-20 seconds before a junction, and a repeat when you get to the junction. The messages are pretty accurate, and in our tests, very useful, with messages like "At the roundabout, take the second exit", or "at the end of the road, turn left then turn right". Best of all, if you make a wrong turn, or know a better way, the software re-plans the journey on the fly without any need to touch the screen - and the planning is pretty intelligent (i.e. doesn't just tell you to turn around!). While you're moving, the display gives you distance to the next turn, your current speed, arrival time, how long it'll be before you reach the destination, the name of the next road, details of the GPS signal you're receiving, and icons to indicate any overlays on the way.

The One can be used with the TomTom PLUS service, which is a bundle of extras that provide real time information on traffic congestions, weather conditions and extra downloads such as detailed city maps, additional voices, points of interest and much more.

The icons below, captured from the TomTom One's menu highlight some of the other nice little extras supported on the One, such as the ability to reorganise your route - perhaps you'd prefer a scenic route, need to avoid the road ahead, would prefer the shortest trip as opposed to the fastest. You can also use TomTom One to browse a map of your route, or just use the One as a countrywide A-to-Z searchable streetmap.

TomTom Menu

The One is supplied with a USB cable to connect to a PC. With this, you can install new voices or Points of Interest, and perform a backup of your maps and files if required. When you connect, effectively, the TomTom storage appears as a drive in My Computer, and you can either use the Setup application to copy files, or you can do this manually by dragging and dropping files via the new drive that appears in My Computer. There's also a software packaged called TomTom Home that can be used to install software updates, new voices or other content. This can also be used to perform a backup of your TomTom One.

Summary: We're very impressed - the TomTom One is very easy to use, a comfy size to hold, and it doesn't look to bulky when installed. It uses the relatively new SiRF Star III chipset for its GPS location information (an improvement on the Go 300, 500 and 700), and the satellite lock is remarkably fast and strong. Battery life seems to exceed the stated two hours - we've exceeded two and a half hours with no problem. After the few days we've been using it - no problems or complaints. We've been using the One with the UK camera database and some of the alternatives voices, and it's worked a treat. We've tried TomTom Traffic too, connecting to a mobile phone using Bluetooth and GPRS - worked nicely, although the travel information received wasn't as detailed as we'd have hoped.


User reviews:

Thanks to site visitor Mick Woods for supplying the following: "I have just bought the latest version of the Tom Tom One Sat Nav, and for the first time user of such gadgets, it's really easy to set up, install and use. Basically, take it out of the box, install the memory card and switch on. The menu's are easy to follow and the graphics good. When in use, the screen is easy to follow and the instructions clear and concise. The screen has excellent clarity and the unit small and slim, making it unobtrusive when fitted to the windscreen. On my unit, the battery has lasted longer than the two hours as stipulated in the manual. Even the pre-set voices are agreeable. All in all, for the price, a good and comprehensive product." (Dec 2006)

Supplied with TomTom OneSupplied with the TomTom ONE v2:

  • TomTom One Unit
  • Map data on SD card
  • Mini-USB lead for connection to PC
  • 12V car charger / power lead
  • Windscreen fixing kit
  • Quick Start Guide
  • CD with full manual

Specs of the TomTom One Second Edition:

  • Device: Linux-based OS with 32Meg onboard RAM
  • Screen: 320 x 240 full colour touchscreen
  • Dimensions (Version 1): 110 x 89 x 34 mm ; Weight: 260 grams
  • Dimensions (Version 2): 97 x 81 x 25 mm ; 184 grams
  • Internal rechargeable Lithium-Ion battery
  • Built-in GPS receiver based on SiRF Star III chipset with 20 Channel All-in-view tracking. Supports an external antenna if required.
  • Connectors: USB port, SD card slot. The first version also had a headphone socket and a separate slot for the car charger

TomTom Traffic

TomTom TrafficThe TomTom One supports download and display of real-time travel news. In the UK, the travel data is supplied by ITIS.

Traffic information is downloaded to the One via a mobile phone with a GPRS data service - you'll need a Bluetooth mobile phone that can access the Internet for this.

The One can be set to connect to the TomTom service over the Internet, and download information about traffic problems straight into the One, which uses that information to update your route. There is a subscription charge for using this service.

For more on real-time road information, see our Travel page.

For more on getting traffic information on your TomTom, see our TomTom Traffic page


Frequently-asked questions:

Latest version

To check your software version, go to "Change Preferences > Show version". If you're not running the latest version, this can be downloaded free of charge, and installed using the TomTom Home application, which can be downloaded from TomTom's site

Version 1, 2 and 3

In September 2006, TomTom released a new version of the TomTom One. It's become called "Version 2" or "Second Edition", and is available in two variants, a "Regional" (i.e. Great Britain), and a "Europe" - the same hardware, but different maps.

In September 2007, a TomTom One "Third Edition appeared:

Key differences between the first version and the subsequent two, are that they look different, and the newer versions are smaller and lighter:

  • Version 1: 110 x 89 x 34 mm ; Weight: 260 grams
  • Version 2 and 3: 97 x 81 x 25 mm ; 184 grams
  • Version 2 uses a slower processor, and has no headphone socket
  • Version 2 is supplied with newer maps, and the GB version also has maps of Ireland
  • Version 2 (GB edition) has a 256Meg SD card, but version 1 had a 128Meg card
  • Version 2 can be charged via a PC USB socket as well as the in-car charger
  • The Third Edition has no SD slot for maps (it has a built-in memory), and has no Bluetooth. It does have a TMC receiver for optional connection to a radio receiver for travel news.

TomTom One Versions

One or Go?

So, which is better, the Go 300 or the One? Making a choice between the TomTom One and one of the Go range can be a tough one... here are the key differences, to help you decide:

  • TomTom One: Smaller and slimmer than the Go range, with improved GPS chipset. Functionality is comparable to the 300 (The second Edition has Bluetooth / SD card and touchscreen). Unlike the Go, the One is not supplied with a carry case, and TomTom quote 2 hours of battery life vs 4 hours with a Go 300. £70 cheaper than the Go 300.
  • TomTom Go: Popular in-car navigation solution. The Go 300 is the basic model, the Go 500 supports hands-free calling with Bluetooth mobile phones, and at the top of the range, the Go 700 has a built-in 2.5Gig hard disk and supports door-to-door navigation across Europe.
Extra voices

TomTom products allow you to use different voice files to suit your mood. You can install multiple voice files and switch between installed voices. The TomTom CD comes with a number of different voice files, but there are a couple of other places to pick up some new voices to heighten your driving pleasure:

You can download a few extra voices directly from TomTom's site - we opted for John "Bear right, Badger Left" Cleese. As well as TomTom's site, we recommend Sat Nav Voices as a top place to pick up a new voice for your TomTom - their range includes White Van Man, The Voice of God, a Geeza, Manuel from Barcelona, and the rather bizarre Cat Nav. Our favourite? Sexy Sabrina... for those long boring journeys... "would you mind just turning to the left for me sweetie?"

TomTom VoicesOnce downloaded, voices need to be copied from your computer into a folder called '\voices\ on the TomTom Storage. (Help on copying). Voices can be activated on the TomTom via 'Change Preferences > Voice preferences'

Extra maps

TomTom MapsIt's possible to buy other maps for your TomTom One. These are available for a number of different countries and regions, such as: Western Europe, Italy / Spain, Portugal, Andorra / France / Great Britain / Belgium, The Netherlands & Luxembourg / Germany, Austria, Switzerland, Poland & Czech Republic / Sweden, Denmark, Finland, Norway / USA / Australia.

If your TomTom One has a card slot (v1 and v2), you can buy maps on SD cards that can be slotted into your TomTom One. These can be purchased from retailers such as Partmaster Direct

Alternatively, you can purchase and download maps online from TomTom's site, and install them using the TomTom Home PC software.

Extra POIs

POI stands for Point of Interest, and is a database of locations that can be overlaid onto a TomTom map. One obvious example of this, is a speed camera location POI, and we outline how to install and set up a speed camera database on our TomTom Safety Camera page.

The process of installing a POI, is that you need to copy two files into the folder that contains the map that you want to associate the POI with. The two files are:

  • The database itself, with a .ov2 file extension (e.g. gnomeshops.ov2)
  • An icon - This is a bitmap file with the same name as the POI file (e.g. gnomeshops.bmp)

For help copying POIs into the right folder on your TomTom, follow the example for the camera POI

If you're looking for other POI databases to install, try TomTom Plus, TomTom's list of POIs here , or the PocketGPS POI list

The pre-supplied POIs are in a file called poi.dat - You can rename this if you don't want them to appear in your POI list - or you can delete the file to save space (keep a copy, just in case)

Copying files to TomTom

If you're looking to copy files (such as voices, maps or POI databases), you have two options:

  1. Connect the TomTom to the PC using the USB connector. To transfer files, you can either use the TomTom Home application (From, or you can copy files manually.
    If you want to copy files manually, when connected to a PC, the One's drive can be found in 'My Computer' - You can open the TomTom storage area to take a look at the files and copy files.
    TomTom PC connection Once connected, on the PC, go to "My Computer", and you should find a drive called "TomTom". Double-click this, and you should be presented with a view of the contents of the storage area on the TomTom One. You can then use Windows drag-and-drop to copy files onto the TomTom.
  2. If your TomTom One uses a memory card, purchase a memory card reader for your PC. You can then use this to access the contents of the memory card and copy files from your PC.

TomTom One Case A range of accessories are available for TomTom products, including additional maps, car mount kits, power adapters, car chargers, an external antenna and a selection of cables. We'd also suggest you consider getting a TomTom One Carry Case to keep your screen scratch-free.

Try the following online retailers:

Updated maps

Your TomTom will be supplied with map data from mapping firm Tele Atlas N.V. Based on our previous experiences of TomTom products, it seems that new major map releases happen around once a year - updated maps take changes in roads and new road/property developments into account.

TomTom's PC application "TomTom Home" should be able to tell you if new maps are available. Connect your TomTom to your PC, and use TomTom Home on your PC to let you check for new maps and install them to your TomTom device. Otherwise, check TomTom's site for information on new maps.

Newer versions of TomTom software make use of something called MapShare, and can be updated using TomTom Home to reflect road changes spotted by other road users.

TomTom Map Share

Map Share appeared towards the end of 2007, and was added with version 7.x of TomTom's on-device application. Mapshare allows users to make changes to their maps and upload them to TomTom to share with other users. A nifty way of keeping maps up-to-date.

TomTom Map Share requires application version 7.x (or above), and map version 675.1409 (or above) to be installed on your TomTom. See our FAQ for help with New maps and Software versions.

Existing settings & services?

If you've already got TomTom Navigator 5, you'll be pleased to know that it's possible to transfer your Favourites, Settings and personal POIs from the Pocket PC version over to the One. In the map folder, you'll find a .cfg file (e.g. \Great_Britain-Map\Great_Britain-Map.cfg) - copy this file into the map folder on the One, and your settings should be available on the new device.

As for any voices, POI files and other customisation's, it should be possible to move these in a similar way. Note that some products purchased directly from TomTom's site may be 'tied' to the current machine, and they won't work if directly copied - you need to go to the TomTom Plus page, edit your profile to include details of your new device, then download the files / services again.

Connecting to a mobile

If you've got a TomTom One and a mobile phone that has Bluetooth, you can get the One to connect to the Internet. To do this, your phone must be set up to make Internet connections using GPRS. Once connected, you can download travel news and weather reports using the TomTom Plus service.

Here's a quick guide on how to pair your TomTom One with a Bluetooth mobile phone, so you can connect for live traffic data:

  • Turn on Bluetooth on your mobile and make sure it's set to Discoverable
  • From the TomTom, go to the "Connect to your phone" option, then start scanning for phones
  • The TomTom will scan for mobile phones, and if it finds yours, will try to "pair", and check that your phone can make a connection
  • Your phone may require a password to establish a paired connection. The default passcode is '0000'
  • The TomTom should then try to establish a data connection using your phone. Assuming all goes well, your phone should connect to the default Internet provider on your phone, and you should get a confirmation message on the TomTom. It will then be set and ready for use with TomTom Plus online data services.
  • To save hassle, you should go to your phone's Bluetooth control panel and set the TomTom One as "Set as authorised"

Your mobile phone will need an Internet connection - commonly using the GPRS mobile Internet service (as opposed to a WAP or MMS connection) for TomTom Plus to work. If you need help getting your mobile phone to connect to the Internet, try our Connect page

The following pages may also help: Using Bluetooth and GPRS in the UK . If you need more help, ask in our Navigation forum.

PC Connectivity

Your TomTom One can be connected to a PC using the supplied USB lead. With the TomTom switched off, connect the USB lead from the TomTom One to the PC, then turn on the TomTom. The PC should detect the TomTom and let you either access the storage on the device via My Computer, or support features like software and map updates via TomTom's PC Software, called TomTom Home

If you're not able to get a connection between your TomTom and your PC, try:

  • Make sure you have the latest version of TomTom Home from
  • Try another USB port on your PC
  • Check Start > Settings > Control panel > System > Hardware > Device Manager to make sure that there are no problems with connected devices
  • Try asking in our forum, including details such as version number, operating system, error messages, etc
Bigger SD Card

SD CardIf you find you've run out of storage space for new maps or data on your TomTom One, you need to free up some space by deleting unwanted POI files, voice files and splash screens. If you have v1 or v2 of the TomTom One, you can also buy a bigger SD card. Note that the Third Edition of the TomTom One uses built-in memory, not SD card.

If you have a version of the One with an SD card slot, , buy a blank SD card with enough space for your maps and other files, and choose a card with the fastest read-speed possible. Don't go overboard on card size though, as large cards may take longer for your TomTom to read. For some suggestions on where to buy low-priced SD cards online, see our SD Memory Cards page.

When you have a new card, connect your TomTom to your PC, and use the TomTom Home software on your PC to back up your existing card (using the "Make Backup" option"). Once the backup is complete, disconnect your TomTom, turn it off, and insert the new SD card. Then, reconnect to the PC, switch on, and use "Restore backup" to copy the files onto the new card.

Missing maps

We occasionally hear from people that have either accidentally deleted their maps from the TomTom One memory card, or have lost their maps as a result of the card becoming corrupt. Here are some notes.

  • If you were wise, you will have backed up your memory card onto your PC using the TomTom Home supplied with your unit. If that's the case, you can connect to your PC and restore the card.
  • There are various third-party applications out there that will let you recover deleted files from an SD memory card - A quick Google search revealed amongst others.
  • Otherwise, you'll need to contact TomTom Support, to ask them to help with a replacement set of maps. You'll need to provide them with proof of ownership.

Also, see our "Problems" FAQ below.

Driving without a route

We've been asked a couple of times how to make use of TomTom without having a planned route in mind. TomTom is really designed as a navigator, but there are a couple of options if you just want to use it as an electronic map:

  • TomTom Clear Route iconAfter a route has been set, you can clear the route - Go to the main menu, and look for the 'Clear route' menu option
  • Use it with the volume turned down - tap on the bar at the bottom of the screen, and turn the volume bar to minimum
  • Switch to Map mode - tap on the screen, and scroll to 'Browse map' - You'll be able to see your position plotted on a zoomable map.
  • We've also had some luck with the following. Set up a short route with a close destination. Drive to that destination. Once TomTom's got you to that destination, it doesn't seem to mind what you do next, and will continue to show the navigation screen, but without route or spoken directions
Deleting recent data

The TomTom software doesn't seem to support the option to remove addresses that you've recently visited, or routes that you've recently calculated.

Recent address information is held in the cfg file that is stored in your map folder (e.g. Great_Britain-Map) - if you really must remove your old addresses, deleting the config file will do this - but you'll also lose all of your other customised settings and favourites, as these are also held in the cfg file - you're advised to take a copy of the cfg file before deleting it - just in case you regret deleting the cfg file.

If anyone knows of an easier way, please let us know

Manual The TomTom One manual is available for download as a PDF file from TomTom's site. At the time of writing, the link to the PDF manual can be found here: TomTom One PDF Manual. TomTom Manuals can be found at

The TomTom One Mk 2 has a built-in non-removable Lithium-Ion rechargeable battery. It's advised to charge the battery fully before using for the first time. TomTom states a battery life of two hours operation from a full charge. Stated recharge time is two hours.

If you don't use the TomTom one for a while, it will eventually lose its charge and need recharging before it can be used again. From our experience of the One Mk.2, if the unit is completely dead, it needs to be plugged into a power supply (USB, car or mains) for about a minute, to get enough charge to boot. It can then be used while the charge is building up.

Power supply

The TomTom One runs from an internal rechargeable battery, and can be charged via a supplied 12/24V cigarette lighter or via a mains adapter.

Version 1 Power supply:

Thanks to site visitor John B for passing on the info on the power adapter for the TomTom One version 1:

  • Input: 100-240v~/0.3A, 47-63Hz
  • Output: +5v 2.0A (centre = positive, ring negative)

TomTom sells a mains power adapter as an accessory for the TomTom ONE version 1. Mains and car adapters for the version 1 release are also available from Partmaster Direct.

Version 2 Power adapter:

Mains and car adapters for the version 2 release are also available from Partmaster Direct. Note that Version 2 of the TomTom One charges via the USB-B connector, so a number of mains and car chargers designed for other devices (such as phones and MP3 players) should work. We've been able to charge our TomTom One v2 with a Lobster 700TV charger as well as a Creative Vision M charger. Try Carphone Warehouse and MobileShop for some generic USB chargers.

Note that it's possible to charge the TomTom One V2 from a PC, via a USB 'B' lead.

Setting the clock To set the time and date on the TomTom One, go to the menu, select 'Change Preferences' and keep pressing the Forward allow until you get to the screen with the 'Set Clock' icon.
GPS Status and info GPS statusFor those interested in all things GPS, note that the Configure GPS option available from the menu provides you with a summary of the GPS signal that's being received - this shows longitude & latitude, current speed and direction, plus the reference number and signal strength of each GPS satellite that's found. Click on the image for a full-screen picture of the GPS screen.
In-car reception

For the TomTom One to work in-car, the unit needs to "see" a fair amount of sky to get line of sight with the orbiting satellites. The One is normally positioned using the car cradle that's suckered to the front windscreen, which gives it the best chance of seeing the sky. Other windows, and possible even the sunroof, can often get enough visibility of the sky to get reception of three or more satellites - which is enough for a lock.

In some rare cases, a heated windscreen may reduce reception (and in some cases, prevent it - but not in the three front-heated cars we've tried). In the event that the One can't see the satellites, an external aerial can be attached to the One - this is available as an accessory. Try our forum if you want more advice on reception.

Activation code

If you've got yourself a TomTom unit - you should keep a safe record of your Product Code and Activation Code, as you may need these again if you have to reinstall TomTom software. Product activation is handled online at

Your TomTom hardware also has a device code, which you may prompted for by TomTom at some point. You can get this by tapping on the main navigation screen, down on the bottom right (by the GPS status bars). Then tap on 'Version'.


The TomTom One supports navigation to full UK postcodes. Here's how to enter a postcode:

  • Press "Navigate to"
  • Press "Address"
  • Press "Postcode"
  • You're prompted to enter a postcode - the screen confirms street as you type
  • You enter the full postcode, and tap 'Done'
  • You're prompted for House number, then press 'Done'

TomTom Postcodes

Bluetooth Hands-free

We've been asked if the Tom Tom One supports hands-free dialling to a Bluetooth mobile. The answer is no. Although the TomTom one supports connection to mobile phones using Bluetooth for data (such as Traffic updates), the One doesn't support voice-over-Bluetooth.

If you're looking for a TomTom device that supports hands-free voice dialling via a Bluetooth mobile phone, look for the TomTom Go 720, TomTom Go 510, TomTom Go 710 or TomTom Go 910.


Looking to adjust your TomTom's voice prompt volume? While navigating, tap on the area of the screen below the map where the 'distance to next junction' is displayed, to pop up a volume meter. Also note that some versions of TomTom have an option to automatically adjust the volume of voice prompts depending on the speed (noise) that the car's travelling.

You can alter this from the Change Preferences > Volume option.

Maps of Eire We've been asked on a couple of occasions if maps of Ireland are available. It seems that version 2 of the TomTom One comes with a Republic of Ireland mapset - something which wasn't supplied with the Version 1 maps. If you're planning to use the TomTom One in Ireland, look for the TomTom One version 2, and go for the "United Kingdom" version (buy).

We've had a mail from site visitor Jack, wondering why his One makes an odd "moo" sound for no reason. A simple answer - the TomTom One has a number of built-in sounds that it uses for alerts - bells, beeps, boings, cuckoos... and cows. There are two times when you might hear these:

  • An alert set for POIs. A POI is a point-of-interest, and you can set your TomTom to make a noise when it nears a POI. Many people use this to alert them when they're approaching a speed camera (if they have the Speed Camera database installed). To change alert noises, go to Change Preferences > Manage POIs > Warn when near POI and select the noisy POI
  • Going too fast. With v7 of the software, a safety option was added to alert you audibly when driving over the speed limit - This is under Change preferences > Safety preferences.
Setting up speed cameras

Traffic CamsSome basic instructions on how to install the UK Speed Camera database:

  1. Download the latest version of the database from
  2. Unzip all of the files into a folder on your PC. (If you need an unzip program, use Winzip). When unzipping, don't use WinZip's "Use folder names" option - this means that all of the files go into a single folder, as opposed to being unzipped into several folders.
  3. There are lots of files in the ZIP file (over 220), which you may want to experiment with later, but we're going to start with the basics. We suggest you copy just the GATSO, Red-light and Mobile camera overlay files. To do this, you need to copy just the files we're about to list from the ZIP file onto the supplied SD card. These need to be manually copied to the same folder on the card as the one that holds the Navigator map files. To do this:

    TomTom PC connectionConnect the One to your PC with the USB lead, then use Windows 'My Computer' to open the "TOMTOM" drive. Once you have opened the drive, you will see a number of files and folders. Double-click the map folder. In the UK, this called Great_Britain-Map. The folder will open to show a number of files, including some called cline, cnode, cname, etc.
  4. You then need to drag or copy the following files from the camera database into the map folder on the One:
    - pocketgps_uk_gatso.ov2
    - pocketgps_uk_gatso.bmp
    - pocketgps_uk_redlight.ov2
    - pocketgps_uk_redlight.bmp
    - pocketgps_uk_mobile.ov2
    - pocketgps_uk_mobile.bmp
  5. Once you've copied the files, the contents of the map folder should look something like this screenshot. Now disconnect the USB lead
  6. Start the One, go to the menu, select "Change preferences" and select "Manage POI"
  7. Select "Enable / Disable POI" and select the speed camera POIs you've just copied. Then, press "Done"
  8. You may want to set "Warn when near POI" to get an audible notification when you're approaching a camera
  9. When you next view a map or use Navigate, you should see the cameras

The default set of camera files should take up only around 250k of space, so will fit comfortably on the UK TomTom One.

The Camera Database ZIP file contains a number of other files, such as files for 20, 30, 40 mile-per-hour cameras - see the readme file in the ZIP file for details of these other files.

If the camera files aren't being picked up in the 'Manage POI' view, then you've probably copied the wrong files, or put the right files in the wrong location. If you have a problem, take a look at our image of our map folder, and compare it with yours, to double-check that you have the same files in the same folder (ignore the file dates).

We now have a page dedicated to installing safety cameras - See our TomTom Cameras page.

Other questions

Some other questions we've been asked:

  • Q. Does the TomTom One Europe have the UK postcode search facility the same as the TomTom One GB? - Yes, according to descriptions on Amazon and Argos websites
  • Q. Can you install the Safety Camera Database for GB (Pocketgps version) on the TomTom One Europe? Yes - we're not aware of any issues.
  • Q. Does this TomTom support bridge heights, or width & weight limits? - No. Presumably as this would be costly to implement and of limited use to the majority of TomTom users. Let us know if you can recommend a Satnav that supports these features. Update: Low Bridges datafile available for TomTom.
  • Q. Can I set up a multi-drop itinerary and get TomTom One to calculate the best/shortest/fastest route to encompass all drops? - The TomTom One supports itinerary planning where you can set up multiple points to navigate to. The list of stops can be saved and manually reordered. The TomTom One does not support optimising the itinerary to reorder in the most efficient way. Note that apparently, version 3 of the TomTom One doesn't support Itinerary planning.
  • TomTom Language iconQ. My TomTom is in the wrong language - how do I change it? Go to 'Change preferences' and select the 'Change language' icon, pictured to the right.

Faulty card? When switching on, if you see an image of the memory card with a big red cross through it, try the following:

  • Try taking the memory card out and re-inserting it
  • Try resetting the TomTom unit (paperclip in the reset hole)
  • Try seeing if the card is readable in another machine - perhaps a PC card reader or a PDA - if the card can't be read, it may have been corrupted
  • Try connecting to the TomTom via the PC and the TomTom Home application
  • Still no joy? The card could be damaged, or an important file could be corrupt or missing. Contact TomTom Technical Support, or the retailer.

If you need more help, try our TomTom forum

Got a question, or need help? Please ask in our Navigation forum

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