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Town Hero / Héro de la Ville

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones

Will this mess up google maps or only emergency services?

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones


@Jessica_T wrote:

Will this mess up google maps or only emergency services?


My understanding is that it's the accuracy of locations for anything that uses the GPS, including mapping software, although only some devices will be affected, especially older ones.

 

Here's some information from one of the standalone GPS device manufactuers, although Garmin is saying position accuracy isn't a problem with their devices:  https://support.garmin.com/ms-MY/?faq=zWQY6Z2kFiAuY9kDnDBgZ6\

 

and from another company: https://www.orolia.com/resources/blog/lisa-perdue/2018/gps-2019-week-rollover-what-you-need-know

Mayor / Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones


@Jessica_T wrote:

Will this mess up google maps or only emergency services?


Seems to be a thing. A little searching and I find GPS Week Rollover. Happens every 1k weeks due to a limitation in the datastream from the satellites. It last happened in Aug 1999.

 

Perhaps a way to test it is to use a GPS program and if it comes up with a date of about 20 years ago then the GPS in the device is not capable of dealing with the effect.

 

As always...I'm no expert Smiley Happy

Mayor / Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones

But my flip phone still works right? Its not on the list....

 

Cat LOL

 

 

Deputy Mayor / Adjoint au Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones

@Munday when you first set up your account with PM you would have entered your IMEI, and that's why you received the text.  It's going off of your prior device, not your current.  I'm not sure about how they would know your IMEI as soon as you connect to the network (regarding when you switched to your new phone) @computergeek541, how does a company know the IMEI when you put your SIM in a different phone?  I don't see how that is possible, but please educate me on this because that is definitely new to me.

 

@Munday definitely nothing to worry about, if anything maybe contact a MOD to see if there's a way to update your IMEI so you won't get any messages that apply to your old device.  I checked "My Account" and I don't see any options to change the IMEI.

 

 

Deputy Mayor / Adjoint au Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones

WOOWWWWWWW!!!! These are some pretty old devices.  Didn't think I would ever hear about the Blackberry Curve 9300 series and Nokia E71.  When I use to work in the industry over 10 years ago those were some of the phones I was selling.  I'm surprised these phones have even lasted that long, especially the Blackberry's.  People if you have one of these phones I highly recommend it's time to upgrade.  If you made it last this long then definitely my hats off to you......but it's time to move on, shed a tear for the memories, lol.

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones


@dna2016 wrote:

 @computergeek541, how does a company know the IMEI when you put your SIM in a different phone?  I don't see how that is possible, but please educate me on this because that is definitely new to me.

 

@Munday definitely nothing to worry about, if anything maybe contact a MOD to see if there's a way to update your IMEI so you won't get any messages that apply to your old device.  I checked "My Account" and I don't see any options to change the IMEI.

 

 


There's really no reason to update the information on the account.  The IMEI that Public Mobile has on record would only come into play if porting the number out.  Howver, you'd be much better off using the Public Mobile account number.  The IMEI on record could be wrong, invalid, of an old device, or just nonsense such a much of ones and it would make no difference to your service.  There have been some talk about networks blocking duplicate IMEIs or IMEI numbers that are made up of all zeros, but other than that, it really doesn't matter.

 

The IMEI of your device is automatically transmitted from the device to the network as soon as it conects.  There is no choice on this matter, nor do you have to do anything for Public Mobile/Telus to know about it.  It is also during this process that Public Mobile will check to see if the IMEI is blacklisted from use.

 

 

 

Deputy Mayor / Adjoint au Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones


@computergeek541 wrote:
There have been some talk about networks blocking duplicate IMEIs or IMEI numbers that are made up of all zeros, but other than that, it really doesn't matter.

Agreed.  Although right now IMEIs consisting of all zeros are not exempted from Canadian networks AFAIK.  You'd be surprised at how many phones show up with all zeros if you could access a carrier's database... back in the day, one way to "unlock" a phone was to do a factory reset, which also cleared out the IMEI (unbenknownst to many users, following instructions found online).

 


@computergeek541 wrote:

The IMEI of your device is automatically transmitted from the device to the network as soon as it conects.  There is no choice on this matter, nor do you have to do anything for Public Mobile/Telus to know about it.  It is also during this process that Public Mobile will check to see if the IMEI is blacklisted from use.


I remember back when I was with Koodo, your current IMEI would show up in the self-serve portal under your account.  When unlocking a phone (back then it was pay per unlock), I'd simply insert my Koodo SIM card into the phone I wanted to unlock (often I was unlocking for a friend or family member), make sure the IMEI had refreshed on the portal, and then call up Koodo and ask for an unlock.  They'd ask... "is this for your current phone with IMEI XYZ?" to which I'd say "Yup!".  Made it easiest for everybody (they knew I had the phone in my possession, and they could copy/paste the IMEI from their screen).

Deputy Mayor / Adjoint au Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones


@z10user4 wrote:

@Jessica_T wrote:

Will this mess up google maps or only emergency services?


Seems to be a thing. A little searching and I find GPS Week Rollover. Happens every 1k weeks due to a limitation in the datastream from the satellites. It last happened in Aug 1999.

 

Perhaps a way to test it is to use a GPS program and if it comes up with a date of about 20 years ago then the GPS in the device is not capable of dealing with the effect.


Yep... a thing!

 

I spent much of my weekend (Saturday evening, anyway) testing/validating things were working for the company that employs me, since GPS is everything to us (telematics).  It's sort of the Y2K of GPS.

 

Old firmware could affect ability to acquire location for certain devices, but more likely to impact date/time functionality.  A fleet of Chinese Boeing 787s were grounded due to this glitch... they should get ontop of their firmware upgrades! ;-P  Fortunately no planes fell out of the air from this bug...

 

The more cataclysmic end-of-days event for us to be worrying about is January 19, 2038 at 03:14:07 GMT.  This is the roll-over of Unix Epoch time, which is what pretty much all computers are based on.  Now that will be a bigger deal... (mind you, as long as people use an unsigned int32 or bigger, it should all be good... this only affects programs that used signed int32 variables).

Mayor / Maire

Re: GPS Time Reset Issue Impacting Location Accuracy on Select Phones

 @CalgaryBen 

So my idea of seeing if the GPS in ones phone or other devices shows a wrong date is a valid way of testing? Assuming the program one uses that displays a date is actually getting it from the GPS. And then there's Glonass...Smiley Happy

 

This would be more of a general haven't looked kind of question...if one doesn't have their GPS on then will this emergency locating thing work at all anyway? I know some triangulation can be done using the cell towers but if the phone doesn't have the GPS radios on then how would it be found other than the general vicinity?