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iPhone 6 Motion Calibration Always Using Location Services

hi


just received my iphone6 and is updated to ios8.


IVe noticed that the location services was constantly on so went through each item which was enabled for location sharing and disabled one by one. I discovered that under Privacy > Location Services > System Services > Motion calibration was purple. As soon as I disabled it location sharing icon switched off. As soon as i enabled it it came back on again and the purple icon showed up next to motion calibration meaning it was in use.


So my question....what is motion calibration and why is it constantly using location services??


thanks

iPhone 6, iOS 8

Posted on Sep 20, 2014 6:57 AM

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Question marked as Top-ranking reply

Posted on May 19, 2017 3:01 PM

CtownClowns wrote:


My SE has been doing this for the last day. Researching it led me here. What does he mean stop worrying about it? LoL. The arrow is purple meaning it's actively being used.

WRONG. It is explained very clearly what a purple arrow means, and it does not mean it is actively being used. Read what it says at the bottom of the Location Services setting:

User uploaded file

"Recently Used" is NOT the same as "Actively being used."



Yes...that drains the battery.

Also wrong. There are anywhere from a dozen to hundreds of apps and functions on your phone (depending on how many apps you have installed) that consume battery. You are focusing on the least likely cause of your battery problem.


The Location Services arrow on my phone's status bar is always displayed, and going to location services I see a total of 24 arrows displayed, and 10 of them are purple (one is a geofence, which DOES continuously actively use Location Services). If Location Services was a major battery drain my battery life would be 15 minutes. Instead, I only really need to charge every 2 - 3 days; if I charge overnight by the end of the day my remaining battery is typically 70%. And I'm a heavy user, with over 250 apps installed.


By paying attention only to one arrow in Location Services you are essentially denying yourself the opportunity to fix your battery issue.

265 replies

Sep 23, 2014 7:38 PM in response to aimetti

You guys,


I dont understand why you guys are giving work arounds? We shouldn't have to have work arounds. This is a GA release of a software and apple should fix this. We pay a lot of money for these devices and we shouldn't have to deal with it.


Clearly the people in this thread are "tech savvy" because they know enough to enable the location indicator for "system services". 90% of Users do not even know about this because that option is disabled by default.


It has nothing to do with how you restore or setup as new phone. either


A) this is a bug which should be fixed

B) or this is normal and it does not consume battery like we think it does.

Sep 25, 2014 12:38 PM in response to _zulu_

I also noticed the location icon was always on (new iphone 6) anyway, I tried everything to find out what was tracking me (disabling every location tracker too make it turn off) and it was the "motion calibration" as well as "cell network search" once I switched those off, the icon turned off. Im pretty sure those are important functions so I'm hoping to find out more info soon as to what their exact purpose is and if an ios update will fix it. My battery has been draining constantly and even overnight.

Sep 28, 2014 4:19 AM in response to Boberts227

Ok, so I might as well share my findings on this obscure matter:


The battery life on my new iPhone was terrible, I also restored from an iCloud backup from an iPhone 5 into a brand new iPhone 6. I also saw that Motion Calibration required Location Services ALL THE TIME. This caused that the Battery Usage statistics showed that the Idle time and the Usage time where always the same, meaning that the CPU never went to sleep.


So then I followed the advice shown here by @BanComicSans to reset Location Settings. This seems to have fixed the CPU-sleep problem, since Standby time and Idle time don't match anymore, but show a normal behaviour. However, the MotionCalibration is still always on and showing the StatusBar icon all the time as well, so I think this is also not an ideal solution.


Talked to an AppleCare representative about it, he opened ticket 670100397.


Let's see if this is fixed in a future iOS 8 release and let's see what we can find out about this.

EDIT: and when an AppleCare representative says to setup your phone as new, don't. This is an 700$+ device we just purchased and there's a service/feature called iCloud Backup that we're entitled to use. If this means that the backup borks the phone, then they should go and fix the backup service, it's not your fault.

Sep 29, 2014 11:17 PM in response to _zulu_

Hi Guys,


I had the same issue. However i just left it on and do nothing about it. (since there isn't any concrete solution other than switching it off)

After about a week of usage, the motion calibration is no longer always on. My guess is that they are programmed to gather information of user's one week of activity pattern. So if you keep resetting your location services privacy, the data collected will always be starting from day 0 and it will never be able to finish gathering the information required.


Anyway this is only my guess. It worked for me, hope it is the same for you.

Btw, my iPhone 6 is still running 8.0 so it is not the patch that solved it.

iPhone 6 Motion Calibration Always Using Location Services

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