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Older GPS devices are facing their own mini Y2K bug

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  Older GPS devices are facing their own mini Y2K bug not@telling.you.invalid (Computer Nerd Kev) - 2019-04-06 00:12 +0000
    Re: Older GPS devices are facing their own mini Y2K bug not@telling.you.invalid (Computer Nerd Kev) - 2019-04-06 01:57 +0000
    Re: Older GPS devices are facing their own mini Y2K bug Chris J Dixon <chris@cdixon.me.uk> - 2019-04-06 07:05 +0100

#17769 — Older GPS devices are facing their own mini Y2K bug

I'm a bit late finding out about this one, but then it turns
out the fire authority in my state of Australia has only just
discovered it as well.

Not hopeful about firmware updates for my Magellan GPS 300, circa
1999...

"Older GPS devices are facing their own mini Y2K bug next month"
 By James Vincent Mar 8, 2019
- https://www.theverge.com/2019/3/8/18255847/gps-week-rollover-issue-2019-garmin-tomtom-devices-affected/

"Do you own any GPS devices or use equipment that relies on GPS to
 function? If so, now is probably a good time to check whether or
 not those products are protected against the GPS Week Number
 Rollover issue -- a sort of mini Y2K Bug for GPS receivers that
 will come into effect from April 6th this year. 

 The bug isn't disastrous and should only hit a small number of
 GPS devices, but for those impacted the results could be severe,
 resetting the receiver's time and corrupting its location data.
 Only older devices are at risk, though, and if you're just using
 a commercial device the fix is quite simple: just check that its
 software is up to date. 

 TomTom has told customers "if you frequently update your device
 there's no need to worry" as it's already rolled out a fix. (You
 can also check if your device is affected using its serial number
 here.) Garmin says it's been testing its devices for problems but
 that "the vast majority of Garmin GPS devices will handle the
 [event] without issues." And an official memorandum from the
 Department of Homeland Security says any GPS receivers running
 the latest IS-GPS-200 standard and connected to UTC "should not
 be adversely affected." " ...


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#17770

Computer Nerd Kev <not@telling.you.invalid> wrote:
> 
> Not hopeful about firmware updates for my Magellan GPS 300, circa
> 1999...

Actually, besides now insisting that it's the 21st of August 1999
(date of the last epoch), the coordinates still match my map
perfectly.

Seems it might just affect tamestamps and other clock-related
functions. Perhaps the reported location-related problems are due to
GPS maps being syncronised with the GPS date (my GPS 300 is
unburdened by such complexities).

https://www.gps-repeaters.com/blog/gps-week-number-rollover-april-6th-2019/

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#17773

Computer Nerd Kev wrote:

>"Older GPS devices are facing their own mini Y2K bug next month"
> By James Vincent Mar 8, 2019
>- https://www.theverge.com/2019/3/8/18255847/gps-week-rollover-issue-2019-garmin-tomtom-devices-affected/

> TomTom has told customers "if you frequently update your device
> there's no need to worry" as it's already rolled out a fix. 

OK in theory, and they have kindly offered the fix for my aged
520 despite having officially ceased support some time ago.
Sadly, the only way I would have room to load the updated
software would be to delete the maps, which rather defeats the
object.

Chris
-- 
Chris J Dixon  Nottingham UK
chris@cdixon.me.uk

Plant amazing Acers.

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