GPS on my iPhone 6+ has always been accurate. Amazingly accurate. Most of the time, it took only a few seconds to pinpoint my location on any app using GPS, Apple Maps, Google Maps... This has been the case for almost 3 years.

Update to iOS 11, then up to iOS 11.2.1

After the update to iOS 11 / 11.2, GPS is never accurate. The best it can get to is an approximate location of a radius of 20 meters. And often, the actual location is even outside that circular area. Whatever the app, same problem.

Tried to go in a very opened area, with no building, no trees... on a very blue sky day. Waited for minutes in Maps... same problem.

Tried the common fixes found everywhere on the Net

  • Reset Network Settings (after each update, then have to enter all wifi passwords again)
  • Reset Location & Privacy
  • Location Services ON/OFF
  • Reboot ... several times
  • All apps have been updated to the last version (eg Google Maps)
  • Airplane mode ON/OFF ...
  • and of course, tried with wifi ON and OFF

Nothing has improved in the GPS department...

(Unfortunately cannot restore to iOS 10 since I don't have a fresh backup of before the update)

Is this a known issue for some iPhones (namely the 6 family)?

Any other advice welcome.


No improvement with 11.1.2

Nov 28 update

As of today, everyone I know who has an iPhone 6+ on iOS 11+ and use GPS a lot has this problem. Did an app to calculate the best accuracy the device might have within 30 minutes, under a clear sky, out of town - GPS is always erratic, inaccurate. It's definitely an iOS / firmware issue.

Went to Apple store and talked an hour with the manager, explaining the problem etc... Basically answers were

  • there is nothing to do - your phone is defective and has to replaced with a new/used one [buy a new [678]+, or an X] ...

Dec 22 update

It seems the reason to this sudden trouble could well be due to Apple slows down iPhones as they get older. GPS is a complex mechanism, and forcing the CPU (and other components) to act differently, to slow down, and probably get less power, could have an effect on the GPS chip and behavior.

  • 11.1 is supposed to contain a fix for that - but idk if other app updates are needed to take advantage of the change.
    – Tetsujin
    Commented Nov 1, 2017 at 11:32
  • @ironman Well this is what I was hoping/expecting after the 11.1 update. But unfortunately... Regarding the apps, Apple Maps was updated along the system and, unfortunately, it doesn't work any better than the other apps :-(
    – Déjà vu
    Commented Nov 1, 2017 at 12:55
  • 1
    I have exactly the same problem. Updates haven’t helped. I thought my phone had gone bad. I deleted and reloaded maps and it helped a little, but still lose location at bad times during navigation.
    – Rob
    Commented Nov 13, 2017 at 3:50
  • 1
    I have the exact same problem. (ios 11.1.2 with iPhone 6plus) No solution yet. Commented Nov 27, 2017 at 23:16
  • 1
    @RingØ That reason doesn't seem plausible to me at all. The GPS functionality is contained within a seperate IC (the MDM9625M) - so throttling the A8 CPU should have no impact at all on the GPS.
    – jksoegaard
    Commented Mar 7, 2018 at 21:09

1 Answer 1


Try updating to iOS 12. This should hopefully provide a fix for it. Also when you try to get your location try to wait a bit as accuracy improves over time. Make sure that you've set the date, time, and time zone correctly on the device in Settings > General > Date & Time. If possible, use Set Automatically.

GPS accuracy depends on the number of visible GPS satellites. Locating all visible satellites can take several minutes, with accuracy gradually increasing over time. To improve GPS accuracy:

  • Make sure that you've set the date, time, and time zone correctly on the device in Settings > General > Date & Time. If possible, use Set Automatically.

  • Keep a clear view in several directions. Walls, vehicle roofs, tall buildings, mountains, and other obstructions can block line of sight to GPS satellites. When this happens, your device uses Wi-Fi or cellular networks to determine your position until the GPS satellites are visible again.


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