Older GPS devices could be hit by ‘millennium-style’ bug

A warning for walkers using GPS devices that were made prior to 2010.

The date format used in the older specification for GPS devices runs out of digits this April 6th. The specification was changed some years back and all more recent devices that use the ‘ICD-200/IS-GPS-200’ specification will be able to cope with dates after 6th April 2019, but it is unclear how some older devices may react to the problem.

The date stored by older GPS units is likely to fail after that date, and revert to an earlier date. The GPS may well continue working fine apart from the dates, but there is a chance that the error may cause some devices to fail. If that happens, it may be possible to contact the manufacturer of your device to see if they can provide updated firmware.

If using an older GPS device, walkers should be aware that there is a chance it may stop working on 6th April and ensure, as always, that they have some form of backup. If your device continues working after that date then it will probably continue to be fine.

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Walking can be dangerous and is done entirely at your own risk. Information is provided free of charge; it is each walker's responsibility to check it and navigate using a map and compass.