On the gps satellites the week number for the oldest and most common signal is represented with 10 bits. This means the week number rolls over at 1024 weeks, or about every 19 and a half years. The second occurrence of this is next month. So it’s already happened once before.
It’s not a problem unless the GPS receiver can’t handle the rollover and most are able to do so out of the box or with a software upgrade. So it’s really up to each receiver vender to handle it.
If your phone suddenly stops working next month, you know what to complain to tech support about. 😝
Makes sense to me, that’s a good explanation. I have a car GPS, a handheld hiking GPS, and my phone has GPS. I’ll be curious to see if/how they’re affected.