iPhone 6 Motion Calibration Always Using Location Services

Lawrence

Yes, you're right, I made a mistake when reading, I didn't considered "reliably".

iZian

Same thing happen to me, I restored to new iPhone with iOS 8.1.3, then put all my apps one by one, for 2 days (while I didn't charge the battery) MC icon was off (but everything was set "on"), after I charged the iPhone MC was always on. 3 weeks exactly today since that, MC has been always on, I don't think, as somebody told, thtat it taker 2 weeks to calibrate. I'll wait 2 more days to see what happens.

iZian wrote:

When I restored to a completely new iPhone; I had the same data and the same apps and MC didn't stay on all the time until a few days later; something triggered it off

Yes, of course. You launched an app that needed the MC information. What is surprising about that? And if you didn't kill the app it continued to need that information. Your stride and pace is not fixed in stone for all time. It changes constantly, with the surface you are moving over, your speed (yes, your stride changes with speed), how much you are carrying, whether you are going up or down a slope, up or down stairs, weather conditions, how tired you are, etc. Any responsible app that is monitoring you will need to make constant adjustments if it is to provide accurate information. I would be surprised in MC was NOT on most of the time. Unless you sit in a chair for 12 hours a day.

No, actually I did not.

I Have no apps that use that data: no apps have requested access to motion data as showin in privacy settings.

Wat hat happened was that MC was behaving normal. It was using location for ~15 sec. Then I go to sleep and in the morning when I awake the MC is now using location 100%. 8 hours earlier it was not. Nobody touched iPhone and it started of its own accord.

Your phone has the Health app. It counts steps. There's no way to stop it from doing that.

That app was counting steps before MC went always on.

The phone was lying perfectly still during the time MC activated it's location domination spree. There was nothing to count during that time nor during the time I used the phone to find MC requesting location.

OOh actually! You're right.

Confirmed that the health app using the iPhone to track walking & running distance causes MC to request location info.

So that does kinda make sense to what I first hypothesised. That it wants to calculate how long a stride is to plot your distance Travelled by foot based on strides?

or is it a case of plotting that distance purely by gps data when motion is detected? I suspect not the latter.

But yes; to all here; I have managed to stop MC using location 100% again. But only as a test. It will likely come back.

Hey Guys!

I never had this problem. Just happened to me 1 week ago. I was thinking -like someone said- maybe it's an app or a bug caused by this app. So, 1 week ago I installed "Nike+" app but I uninstalled after a couple hours.

"Maybe that is the problem!" I thought.

Today, I re-installed "Nike+" app and I didn't give it any permission at all and then re-uninstalled (no background refresh, no 3G, no health sync, etc). Then I uninstalled it and did a soft-reset.

That worked for me, after trying all things people said here with no effect.

Sorry about my english, Just want to share my solution =)

enzocabrerai wrote:

"Maybe that is the problem!" I thought.

What you and the others in this thread don't understand is that IT IS NOT A PROBLEM. It is a feature of the phone. Yes, you can defeat this feature if you wish, but why do you and the others insist on crippling one of the many features of the phone that you spent so much money on? It doesn't use much power. If your phone isn't getting the battery life you expect it isn't motion calibration that is involved; it is something else going on.

The question should not be "How can I fix this problem" - it should be "How can I defeat this feature of the iPhone?"

Lawrence

I understand what you say and it's perfectly logical but, help me with this doubt: why does MC needs to work if my iPhone is still? During the nights my iPhone isn't moved by nobody, why is MC on? If you turn it off, turn it on and use it for several minutes/hours, location icon doesn´t appear, but if you lock iPhone and instantly unlock it, location icon is on forever, why?

I think it's a problem because 2 weeks ago my iPhone didn't do that.

what is your explanation to that? I've read your previous answers, and I agree that the phone is "smarter" than us...."it know what it's doing"., but you can't explain why from one day to another this began to annoying us. That is the question I analyzed.

btw, since I "defeated" that feature, my iPhone doesn't show the location icon. Neither the purple one in the settings.

I don't know either. But keep in mind that the Location Services icon shows that some app has used location services in the recent past; it doesn't mean that it is using it currently. And you have no idea what the phone is doing when the screen is dark. When you wake it up and see the icon most likely it came on because you woke the phone up, and it needs to find out if you have moved since it last checked.

As I've already said, 2 weeks ago you probably didn't have or hadn't activated any apps that needed the information.

As having Location Services active does no harm, if the little arrow really bothers you you could alway put a piece of tape over it.

Yeah, I totally agree Lawrence. I know that the phone should do some background process because of some apps, but this didn't happen 2 weeks ago. That's why I thought some bug could do that. For example, my location service settings now shows the purple icon, but doesn't show it at the top of the screen. That is -I think- should work.

The problem is that I enjoyed being able to see when system services were using my location data; but this system service seems to want my location data all the time, all the day, every day.

if I delete my *old* data; this stoops happening. So MC using location is based on the presence of old data for the health app in my case. To me that sounds like there's an issue. A corruption. Something that happens to trigger that to be on all the time. Because deleting the old data hasn't stopped the phone gathering data. It hasn't stopped the appreciating that and recording that data. But it does stop MC from using location to calibrate for a few hours. My problem is the displaying of when system is using your location is useless if you want default settings on phone.

I think I might have the issue corrected (in my case anyway). I went into system services, in location services, and turned everything off. Then I waited about 30 seconds and switched everything back on. Also, I have the Yahoo! weather app and I noticed that it was using location services all the time. I disabled location services for that app.

After I did both of thore things motion calibration seems to be normal. I left the phone all night and now, about 12 hours later, motion calibration is still not using location services all the time and I'm only seeing the icon at the top of the screen for a few seconds every now and then.

Just something to try. I'll post back if anything changes and motion calibration starts using location services all the time again.