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I don't want to chance getting an interlaced screen or loose power buttom. I'll wait until it is confirmed they are all fixed.
I am tempted to pick another phone up next week and keep returning them under the 14 day exchange period until I get one that's right
 
Here is an apparent fix, but I have to say that I would prefer it was an Apple fix rather than a third party, although it may be left to developers to fix on an individual basis:

http://venturebeat.com/2013/10/17/iphone-5s-sensor-error-fix-released-by-tiny-mobile-tech-company/

Isn't this the same "fix" AppleCare has been telling customers is already built into iOS 7 for weeks now? Why would RealityCap's fix work, but Apple's wouldn't?


On a thread related note, testing has shown that the compass on the iPhone (all models) is simply inaccurate. Something I can verify.

http://www.tuaw.com/2013/10/18/get-lost-iphone-compass-app-struggles-in-tests/
http://www.macworld.com/article/2055380/six-iphones-tested-and-they-cant-agree-on-true-north.html
 
As far as the compass is concerned this clearly points to a software issue since it affects all models.

Maybe this is why 7.0.3 has not been released as apple has some serious work to do.


Isn't this the same "fix" AppleCare has been telling customers is already built into iOS 7 for weeks now? Why would RealityCap's fix work, but Apple's wouldn't?


On a thread related note, testing has shown that the compass on the iPhone (all models) is simply inaccurate. Something I can verify.

http://www.tuaw.com/2013/10/18/get-lost-iphone-compass-app-struggles-in-tests/
http://www.macworld.com/article/2055380/six-iphones-tested-and-they-cant-agree-on-true-north.html
 
As far as the compass is concerned this clearly points to a software issue since it affects all models.

Maybe this is why 7.0.3 has not been released as apple has some serious work to do.

Or perhaps Apple just doesn't care and has no intentions of sending out a software fix for current owners. Their focus is now on the ipad event. Antennagate went on for a few years with a token bumper case or $15 as their final solution.
 
I got my iPhone 5s 64GB Space Grey delivered 2 days ago. Started off -3 on back, -1 on long edge. Week 41 Factory C3. But it now has drifted to -4 or -5 on back, -2 on long edge, -2 on short edge. I rang AppleCare. The first person I spoke to asked if I'd done any troubleshooting. Which I had tried DND etc etc. He then said I should download the instruction manual off their website to tell me how to use the phone! I said this problem was all over the internet. He then asked what software I was using 7.0.2. I was then escalated to a senior technician who said I had a faulty handset and transferred me to after sales. They are now sending out another phone. He didn't mention anything about a software update.
 
My week 41 iPhone arrived and I get about -1 to -2 on the back and long side and 0 on the short side. That will do until a calibration is available.
 
I got my 5s today, knowing nothing about this issue. I discovered it when trying to play Real Racing 2 on the new device.

:eek:

Seriously?

What now?

Will Apple fix this with an iOS update?

It seems practically every 5s has it, no?
 
I got my 5s today, knowing nothing about this issue. I discovered it when trying to play Real Racing 2 on the new device.

What now?

Will Apple fix this with an iOS update?

It seems practically every 5s has it, no?

Welcome to the awareness. Those who have spoken with Apple level 2 support report that a software fix is coming...hopefully, in either 7.0.3 or 7.1.

It appears that 90% of the 5s's are off...with the most being -3°.
You can post your findings here: iPhone 5s accelerometer/gyroscope/compass poll

Check your measurements again in a few days. Many of us have seen the numbers drift for the worse and settle.
 
Welcome to the awareness. Those who have spoken with Apple level 2 support report that a software fix is coming...hopefully, in either 7.0.3 or 7.1.

It appears that 90% of the 5s's are off...with the most being -3°.
You can post your findings here: iPhone 5s accelerometer/gyroscope/compass poll

Check your measurements again in a few days. Many of us have seen the numbers drift for the worse and settle.

Mine is currently -4. I've seen that reported from several users.
 
I chatted to a few reps online today. They suggested the usual, charge in DnD mode. Reset the phone. None of that worked. I'm also getting the -3 variance. The last rep that asked me to backup and restore said he was sure it was a hardware issue and that if the backup and restore didn't work, I should go to a retail store genius.

Honestly, I don't know how Apple trains these people, but you'd think for an issue this prevalent that they're getting many complaints about, they'd have a 5 minute stand-up at the start of the day to go through the top issues. Perhaps they have done, and the solution till a fix was just to play dumb..

Frustrating. Real Racing is a lot harder to play with this issue, particularly as to go straight, your impulse is to return the phone to a level position, which of leads to your car drifting one way.
 
I truly believe the reps have no clue. Some say to put in DND for 90 minutes, other reps are saying that it is software and apple is working on it, and others are telling the customers to exchange. This tells me there has been no communication from apple management to their reps. So all that the reps are telling us is just something they were trained to say. DND trick goes back to ios 6. After that suggestion, they are just making things up. I can almost guarantee that not one rep has any clue if a software fix is coming. Even their immediate supervisors, or even the ones in charge of the call centers or the Apple stores, have been told that a fix is on the way. They are blowing smoke up our butts.
 
We're talking about a different sensor here.
The magnetometer (compass) is far more delicate and nomatter how well calibrated, can be influenced by a lot of things that surround us - basically everything electric or made of iron, even other phones placed near it.
 
I'll mention Eagle Jones calibration method is the same one Apple is touting, which is to lie the phone on it's back for a long time. So if it works for him it should work for Apple, but obviously it doesn't.

Technically it could work, When lying the phone on its back on a level surface, one sensor should read 1g and all other sensors should read 0g. If they read any other value they need to be offset to 0.

It still wouldn't be as accurate as measuring all 5 sides though. Measuring just 3 sides back, long side and short side, wouldn't work as many phones (like mine) report different values on each of the long sides and each of the short sides.
 
Hi everyone.
I want to make a small contribution to this very interesting thread.
The biggest question of every buyer/future buyer is about this problem being a hardware or software one.

Well I have good news and no so good news.
Eagle Jones from RealityCap had done a great job measuring the accelerometer output, and he found that those values had some "offset". This is an small amount of variation over the real value, and can be positive or negative and also would be different for each axis (x, y and z). So, if in a giving position, your iPhone 5S accelerometer should "read" 1g over one axis, it could actually read 1.05g or 0.95g. This variations are different from sensor to sensor and they depends of several manufacturing process.

The good news are that the sensor used (that is indeed a Bosch part, but we don't know which one: http://www.chipworks.com/components/com_wordpress/wp/wp-content/uploads/2013/09/bosch.jpg), had a non-volatile memory were the offset compensation values could be stored.
Why this part wasn't calibrated at the iPhone assembly line we will never know.

The no so good news: some Apple staff had been recommending the DnD and charge procedure, but let me be clear on this: THAT WOULD NEVER WORK.
Your iPhone had an internal 3 AXIS accelerometer. If you left your iPhone lying flat and supposedly "trigger" the calibration by DnD and charge, you are, in the best of cases, calibrating A SINGLE AXIS. A flat up iPhone would only been using the z axis. Remember that each axis have their own offset (negative or positive). In order to fully calibrate the iPhone you need to measure the difference between gravity and the accelerometer output in vertical, landscape and flat positions AND those should be as close as perfect as they could be, otherwise you would end with wrong compensation values.

You may asking why the above isn't a good news, since the sensor could be calibrated. Well, call me skeptic, but I hardly believe that Apple would admit any wrongdoing or that it would recommend hold the iPhone in 3 different positions while the sensor is calibrated. Neither we would see a recall.

Could this be fixed by a software update? This is a tricky question. If Apple "captures" devices assembled in every possible week or day they could, theoretically, measure the offset present in every accelerometer. iPhone's assembled near a single date should use accelerometer's manufactured in a small range of time, and, again theoretically, parts manufactured in a single batch should have similar characteristics. Based in those assumptions, is relatively easily to release a HARD CODED offset compensation, that would be applied in function of the building date of the iPhone. Of course this would be a single iOS 7 release, but internally they can customize what it does (in the same way that they apply the yellow wallpaper to the yellow iPhone 5C and no to another).

Problem with the HARD CODED offset compensation? It would be far from perfect, but supposedly better than the current deviation. At least it doesn't requires that the user put the iPhone in different orientations.

The second alternative to Apple, is do nothing and let the developers to build calibration routines inside their apps.

I want to suppose that the iPhone's being assembled now are properly calibrated.
Is important to keep this thread alive, and even more important, that the new owners publish their building date to confirm the above.

Disclaimer: all the stated above is my best guess on the issue. As I don't work for Apple, neither I had access to their software or hardware, I cannot assure or guarantee that my conclusions are valid.

diego, great response!
 
Software vs Hardware 2

I'll mention Eagle Jones calibration method is the same one Apple is touting, which is to lie the phone on it's back for a long time. So if it works for him it should work for Apple, but obviously it doesn't.

Technically it could work, When lying the phone on its back on a level surface, one sensor should read 1g and all other sensors should read 0g. If they read any other value they need to be offset to 0.

Hi Morac.
The calibration procedure could be done in seconds. The waiting time mentioned by Apple staff is not necessary for the actual calibration, it could be a timer built inside the iOS which triggers the calibration after certain time.

I'm sorry to say, but you cannot calculate the offset when the axis is measuring nothing or "0g". To calculate the offset value you need a know value of g being applied to the axis. And you need one measurement per axis, so the 3 positions (vertical, landscape, flat up) would be enough.
 
I don't want to chance getting an interlaced screen or loose power buttom. I'll wait until it is confirmed they are all fixed.

What do you mean by an interlaced screen"? I know what interlaced means, but I'm not sure how you are using it here :confused:
 
Can anyone prove the existence of a WORKING iPhone 5s accelerometer/gyro by a photo or video with it lying next to an iPhone 5 or a 4S?

Yeah sure, my replacement phone (I posted on page 55 a while back) : https://forums.macrumors.com/showthread.php?p=18120610#post18120610

Nice Name: iPhone 5s
Family name:
Group1: iPhone
Group2:
Generation:
CPU speed: 1.3GHz
Screen size: 4 inch
Screen resolution: 1136x640 pixels
Colour: Space Gray
Production year: 2013
Production week: 36 (September)
Model introduced: 2013
Capacity: 64GB
Memory - flavour: xx
Factory: DN (China, Chengdu - Foxconn)


https://www.dropbox.com/sh/4zecdlmf7r016q8/EHADh8aA1Z
 
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