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

Dec 13, 2017 3:24 AM in response to agodfrin

Hi Tarun (tarun5225),


Thanks for participating in the Apple Support Communities.


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hello...


yesterday I read tht apple has claimed that older iphones like 6 with older battery are causing slow performance in the device, however, i have bought this iphone 6 in april 2017.... still i dont think its a battery issue....if its a bug why dont apple developers solve this.... I really dont have trust on apple again..i feel like a fool spent so much money on this crap still dont perform well after doing all reinstallling a new software and oll..its a shame how my older android 3 years phone UI performs so smoothly than this iphone 6...it is really bad and it's annoying....u will lose trust apple if this situation cant be solve...trust me..m also a software tester,,so buggy ui of ios 11.2 ...it. is really bad

Dec 13, 2017 6:19 AM in response to flgliderpilot

flgliderpilot wrote:


should add i didnt even choose to update, ios tricked me into it somehow and it was done while i was sleeping. now my phone is practically useless.

You have to explicitly accept the update for it to be installed. I'm sure it's quite possible you simply didn't read the box that you clicked "Ok" to but that's not anyone (except possibly yourself) tricking you.

Dec 13, 2017 6:50 AM in response to Killerfrog98

Killerfrog98 wrote:


It's OK, Apple will soon delete his comment; they tend to censor anything negative

No, they remove posts that violate the Terms of Use. It is quite possible to say negative things and not have a post deleted. Mostly, it requires that you be polite and not speculate. If Apple delete all posts that were negative, this thread wouldn't exist. Certainly the thread complaining about the change in the way the Control Center functions wouldn't be allow to continue.


If you say, "I hate X about my iPhone. I think it's awful, possibly the worst thing Apple has ever done. How can I change it or workaround it?", your post will not get deleted. You may get called out on the hyperbole, of course. However, if you say, "Apple s*&&s {rude}, they did this on purpose to make me buy a new phone {speculation} and I'm going to start a class action law suit {just a bad idea},", yes, your post stands a very good chance of being removed.

Dec 13, 2017 7:04 AM in response to IdrisSeabright

IdrisSeabright wrote:


flgliderpilot wrote:


should add i didnt even choose to update, ios tricked me into it somehow and it was done while i was sleeping. now my phone is practically useless.

You have to explicitly accept the update for it to be installed. I'm sure it's quite possible you simply didn't read the box that you clicked "Ok" to but that's not anyone (except possibly yourself) tricking you.


Don't blame the user for this. When a new version of iOS comes out, users get prompted repeatedly to upgrade. These prompts interrupt what you're doing, and you have to tap buttons to dismiss the dialog before you can get back to using your phone. The buttons are not clearly labeled. One of them says "Install Later". Most people who tap that button probably think it means "ask me about this later." But that's not what it means. If you tap "Install Later", the update will install overnight, and you'll wake up with a phone that has the new version of iOS.


There is no way to tell iOS, "I don't want to update. Please stop bugging me about it."

Dec 13, 2017 7:12 AM in response to Andrew Shalit

Andrew Shalit wrote:


IdrisSeabright wrote:


flgliderpilot wrote:


should add i didnt even choose to update, ios tricked me into it somehow and it was done while i was sleeping. now my phone is practically useless.

You have to explicitly accept the update for it to be installed. I'm sure it's quite possible you simply didn't read the box that you clicked "Ok" to but that's not anyone (except possibly yourself) tricking you.


Don't blame the user for this. When a new version of iOS comes out, users get prompted repeatedly to upgrade. These prompts interrupt what you're doing, and you have to tap buttons to dismiss the dialog before you can get back to using your phone. The buttons are not clearly labeled. One of them says "Install Later". Most people who tap that button probably think it means "ask me about this later." But that's not what it means. If you tap "Install Later", the update will install overnight, and you'll wake up with a phone that has the new version of iOS.

Don't blame the user for not paying attention to what an alert says? Hmmm....



There is no way to tell iOS, "I don't want to update. Please stop bugging me about it."

It's pretty clear that Apple, the company known for wanting to control things, thinks people should install these updates, especially as they often contain very important security updates. However, you should still let them know what you'd like to see:


http://www.apple.com/feedback

Dec 19, 2017 12:44 AM in response to Andrew Shalit

Hi Andrew,

Agree on mjestic's feedback - very informative and useful.

Both of you offered useful, practical information that can enlighten and/or assist many, I feel sure. Ty both for that!

Loving the idea of the battery pack, esp for that price.

I know many who may follow in your lead to help with the performance of their devices. I'm definitely passing that idea forward :)

Dec 21, 2017 7:21 AM in response to El Paso Steve

Yea just go get an android. the newest version did not fix one thing, in fact my 6+ runs even slower. As i type right now there is at least a 3 second delay from the digitizer to the text appearing on screen. UNACCEPTABLE. This is how they force you to go and buy the newest iphone. sickening business model. steve jobs is rolling in his grave. apple will not fix it. That I can tell you.

Dec 22, 2017 8:18 AM in response to El Paso Steve

Before the update my phone worked perfectly.


Yes , when I took the update , my iphone slowed down to a crawl. It is officially Garbage now.

The apps run and run and run and drain the battery so fast now. This was really a dumb move..


And I got the battery replacement and the status is the same. really. I think some one owes me another phone. I am very unhappy right now.

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iPhone 6 very slow with IOS 11 update

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