iPhone 6 very slow with IOS 11 update

After receiving IOS 11.01.1 on my MGCT2LL/A1522 (iPhone 6), my phone is super slow. Apps hang, then close (like the Starbucks app), my purchased music would just stop in the middle of a song, then I had to close the app and re-open.

In general, everything is very slow to respond, and I have rebooted twice.


Any suggestions

Posted on Oct 1, 2017 5:02 PM

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Question marked as Top-ranking reply

Posted on Oct 11, 2017 9:03 AM

HERE'S THE FIX: Go into Settings> General> Reset> Reset All Settings (this will reset iOS settings, won't touch your apps)


WHAT THIS DOES: This will *not* erase your phone, but will reset most of the things you can adjust in settings on iOS (you'll need to re-enter you wifi, adjust notifications and privacy settings again, reset your default account for Calendar and Notes, etc, but all your email accounts and iCloud account will still be logged in and all working).


FIXES THIS ISSUE: I had the same issue: iPhone 6S. Upgraded. Even with 25GB free, I'd press a button and often have to wait 1-3 seconds for a response, or copy and paste selectors would be really slow to appear, even the keyboard was unresponsive... phone was barely unusable, literally. I think most people don't get it because most who updated to iOS 11 noticed it being a little slower but not 90% slower. Those like us need to take this step.


BACKGROUND: When I was scouring I found that erasing your phone and restoring from backup worked for people on Reddit, and that should be reliable. I was in the process of doing that myself and accidentally chose "reset all settings" instead of "erase all content and settings". My phone rebooted and all my apps are fine, just needed to go through iOS settings and readjust things.


ALTERNATIVES: This is obviously better than either (a) downgrading to iOS 10 or (b) making sure your phone (as it is now on iOS11) is backed up to iCloud, erasing it, and restoring from that backup.


The difference in speed is shocking.


Pretty sure this will work for you too.

733 replies

Nov 30, 2017 2:45 PM in response to Lawrence Finch

My point is my older devices are getting 2-1/2 to 3 times what Apple is currently rating their newer Li-ion batteries at!

My iPad 2 and 3 models get regular use. Not as much as my iPad Pro, but still fairly regularly.

My 6th gen iPod Touch gets a workout, too!

My 2008 iPod Touch and my 2010 iPad only see occasional use for the past 3-4 years.

Yet, the LI-ion batteries in all of my older iDevice are STILL going!

Is Apple using lesser quality, inferior Li-ion batteries in their very expensive mobile devices, now???

I guess there’s no knowing for sure, but based on my all my iDevices, I’m slowly inclined to believe Apple is using lesser quality Li-ion batteries, now.

Again, no way to know or verify this.

Dec 1, 2017 8:33 AM in response to IdrisSeabright

I don't know what the point you are trying to express, but it's as obvious as day and night that millions of iPhones became junk after updating from iOS10 to iOS11. There is no point to discuss that, it's a fact (obviously you may keep insisting that this isn't), but I asked all my friends who have iPhones (5s, 6, 6s) all say that they hate their phones, they became total crap. That's it. If it's not iOS11 fail as you are trying to say, then there seem to be only one other possibility - iPhones are crap that have a timebomb in them to force people to update their phones to latest hardware.

Dec 2, 2017 9:53 PM in response to El Paso Steve

Same here. OnePlus is the next viable option. I have to get rid of apple music, all paid and subscribe apps. A big ask & significant effort but it is the way forward. And I promise not to return back here. 😢


Just for others who are endless optimistic about Apple,😍 try iOS 11.2 beta. It has produced some promising results without replacing battery


With Great Regards,

Dec 5, 2017 8:57 AM in response to MichelPM

A) I have roughly 30 out of 60 gbs unused;

B) I rarely leave more than 2 or 3 apps open in the background and I am very methodical about closing them as well as shutting down my phone at least once a week;

C) I do not leave my web browser open after using;

D) I tested my battery with one of the suggested apps (which I then deleted) and they showed good remaining life.


So again, with all the apps I have, I have ample unused space and I do not allow the apps or web browser to remain open and running in the background and my battery is within reasonable limits. Yet I experience significant lag in opening apps, in their response times and most noticeably in the reaction and response times of typing and iMessage.

No, I don't think that's the issue. The only reasonable remaining explanation is that the iOS updates have created these previously non-existent issues.

Dec 5, 2017 11:30 PM in response to elppadaed

Running iOS11.2 on my iPhone 6 and it’s DEFINITELY VERY sluggish compared to iOS10. Non of the fixes proposed by Apple have worked, and I agree with the outraged expressed by so many people here.


Between iOS and OS, this is far from the first time this has happened to me - I’ve had countless Macs and several iPhones - but with this level of corporate greed and lack of ethics (not to mention massive tax avoidance in Europe), I will definitely be switching to Windows and Android in the near future. I never thought I’d say that, but Injust have.

Dec 6, 2017 4:30 AM in response to levsa

iPad Air 1, iPad Mini 2 and 3 models all have 1 GB of RAM and those iDevices aren’t having major issues with a lot of user in these communities.

Like I keep emphasising, there are only a very small percentage/minorities of iDevice users having major issues with their iDevices with all tye different updates of iOS 11.

This is not a device-wide, worldwide issue effecting every single iOS 11 compatible iDevice and user.

I have a 1st gen iPad Pro and 6th gen iPod Touch (that only has 1 GB of RAM and has near the same hardware specs as an iPhone 6 without the actual phone part) and both devices have been running every single version of iOS 11 without major performance slow downs, lags or delays.

The only major problems I have been having is photo syncing issues with Photos on iOS/macOS/OS X and syncing issues with iTunes 12.6.3 with both of my iDevices.

Other than this, I have not had a bad experience with iOS 11.

So, all reports coming into the support communities are not typical of all users and devices.

iDevice users who are NOT having problems with their iDevices don’t post in a product technical support community.

Dec 6, 2017 9:45 AM in response to MichelPM

MichelPM: First, for unknown reasons, I am unable to access your responses or comments from the notifying email that I receive. Second, I have made numerous posts to the Apple Support page describing the issues I have encountered with iOS 11, including all the various suggested steps listed in this thread that haven't resulted in a more than 1 or 2 day fix, and hopefully asking that Apple re-sign iOS 10. I know, I am hoping against hope, but right now my phone causes untold frustration and that will remain with me when my phone really does die and I go shopping for a new one.

Dec 6, 2017 9:48 AM in response to Newlaw1995

Newlaw1995 wrote:


MichelPM: First, for unknown reasons, I am unable to access your responses or comments from the notifying email that I receive.

Then read them here in the thread.


Second, I have made numerous posts to the Apple Support page describing the issues I have encountered with iOS 11,

Apple is not reading here in these forums. So, I hope by "Apple Support page" you mean the feedback page. Apple does read everything submitted there.


http://www.apple.com/feeedback

Dec 6, 2017 9:51 AM in response to MichelPM

Oh, and one other thing. Your remark re: wifi updating. In the end, even though an update were to be done through iTunes, ultimately I would venture to say that almost all of us ultimately connect to our ISP through wifi (think laptop) rather than a hard connection. So I am not sure whether your suggestion is either possible in many cases, or a probable cause of alleged corruption of the packets.

Dec 7, 2017 12:58 PM in response to Durianwool

That wasn't a good video to post because from what I just watched in that video, that iPhone 6 was running pretty goram well on iOS 11.2

If this is what all the iPhone 6 users here are, typically, experiencing, then gimme a break!

The iPhone 6 in that video was running pretty well on iOS 11.2

If this is the amount of “lag and delay” everyone in this post is all in a hissy fit about, then everyone here needs to get a reality check!

I saw NO MAJOR, MAJOR performance slowdowns or lag!

Some minor delay from iOS 10 to 11, which I would expect from upgrading to a more “powerful”, new and MAJOR iOS upgrade, but NOTHING like users here are describing in these couple of iPhone 6/6S threads.

Come on...

Dec 7, 2017 1:13 PM in response to MichelPM

Must agree.

I do know this is a minority of users who simply want to sound off vs taking the time to maintain their devices, etc.

Most will utilize the resources and tools given and in turn, thoroughly enjoy their iPhone 6's even with issues experienced prior to updating. They seem to put that aside and focus on going forward instead.

I just got a new phone & am already deleting things and backing them up elsewhere to prevent any issues to the best of my ability.

I do this with all of my devices

Just like to say that I'm glad for those who are now pleased once again with their devices since the update.

Cheers!

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iPhone 6 very slow with IOS 11 update

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