Map Data Corrupted
TomTom GPS Navigation Device
Severity: CriticalWhat Does This Error Mean?
The map files on your TomTom device have been corrupted and cannot be read correctly. This causes navigation errors, missing roads, wrong route calculations, or crashes when navigating specific areas. The fix is to delete and reinstall the affected maps using MyDrive Connect.
Affected Models
- TomTom GO 520
- TomTom GO 620
- TomTom GO 5200
- TomTom GO 6200
- All TomTom GPS devices
Common Causes
- Interrupted map download or installation
- Power loss during map update
- Storage device starting to fail
- File transfer error during MyDrive Connect update
- Long-term storage degradation
How to Fix It
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Connect the TomTom to your computer and open MyDrive Connect.
MyDrive Connect can detect corrupted map files and offer to reinstall them.
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In MyDrive Connect, remove the affected map region (delete it) and then reinstall it.
Deleting and reinstalling forces a complete fresh download of the map data, replacing all corrupted files.
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Ensure the full download completes before disconnecting.
An interrupted download is what causes corruption in the first place. Let it finish fully.
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Use a stable, fast internet connection during the reinstall — avoid mobile hotspots.
Map files are large and mobile hotspot connections can drop mid-download, causing corruption again.
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After reinstall, test navigation in the area that previously had errors.
Navigate through the area that triggered the errors. If it works, the reinstall was successful.
When to Call a Professional
If map reinstallation fails repeatedly, the internal storage may be failing. Contact TomTom support — the device may need storage replacement or a warranty exchange.
Frequently Asked Questions
What causes TomTom map corruption?
The most common cause is an interrupted map download — power loss, USB disconnection, or internet dropout mid-install. Storage degradation in older devices can also cause map data to become unreadable over time. Always let downloads complete fully and use reliable connections.
Will reinstalling maps delete my saved places on TomTom?
No — saved favourites, home, and work addresses are stored separately from map data. Removing and reinstalling maps does not affect your personal saved locations. Only a factory reset deletes personal data.