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Satnavs and even power grids could go haywire due to a ‘GPS rollover’ bug that will strike this weekend, experts warn

The warning has been issued by the National Physical Laboratory (NPL) in the UK

Satnav makers TomTom and Garmin have also flagged the problem with users

It arises from the timing system on many older models 'resetting' this weekend

The NPL said the effects of the ‘GPS rollover’ were ‘truly unpredictable’


Satnavs and other devices relying on GPS technology may go haywire this weekend, scientists have warned.

Motorists, sailors and pilots using GPS technology could all be affected on Saturday at 1am GMT - with the risk greatest with older models of satnav.

But GPS is also used in many other applications, including the electricity grid, which could also be hit, experts warned.


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