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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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

Oct 30, 2017 5:51 PM in response to El Paso Steve

Apple is a dishonest company doing dishonest things to force people to upgrade. After being forced to “upgrade” iOS I can’t rollback (without an IT degree) and I’ve reset all settings. The “upgrade” now makes everything take 15 to 34 seconds to open. Siri only sometimes works and even a simple text message takes 15 seconds to open. Autocorrect works even worse than it didn’t before. I have litterally not a shred of meaningful new functionality and a $900 phone (128gb 6+) that is on the verge of being unusable. How can they be this bad? I never thought the day would come that Apple would sink below the anti-consumer antics of 1990’s Microsoft, but we’re there.

Oct 31, 2017 2:22 AM in response to zglsn2017

Read the tread.

I have a hard time believing you were forced to upgrade.

I had the same issue but after recommendations in the thread about resetting my settings my phone works well again.


That Apple have sunk to the levels of 1990s Microsoft is a pretty bold statement.

Pretty sure your problems will be solved if you follow the steps to reset your settings found in the thread.

Oct 31, 2017 5:37 AM in response to mklackenstam

Sorry, sometimes you need to give the benefit of the doubt to the remarks made here. We are all not just whining and lazy people. I have reset my settings as stated in the thread and guess what? It hasn't fixed the issue. The latest response I received from Apple support was to "back up my iPhone to iTunes, restore the phone as new via iTunes and then restore from the backup!" So maybe you should read the remarks here and assume first that there is an issue.

Oct 31, 2017 7:10 AM in response to Newlaw1995

I also did a full reset. It did help. Instead of being 30x slower than the day I bought it, it is now only 20x slower. Anyone who thinks Apple cares about anyone other than the stockholders at this point doesn't understand the real world. I'm not saying that any other electronics manufacturer cares any more than they do, Apple just has the weight now to bend you over as a consumer. It's unfortunate. Eventually someone will disrupt them just like they did with Blackberry and I personally will be incredibly happy when that day comes.

Oct 9, 2017 9:59 AM in response to ambolstad

I have the same problem with waking up my phone, ever since (pretty sure) 11.0.2. This was not happening when I first upgraded to 11.0 or 11.0.1. My power button works to turn the screen off, but when I press the home button to wake it up, I'm staring at a black blank screen for several seconds until it will finally wake. The wake action is slow also,... it will show a bit of the screen like the time, then pause, then open the screen, like the animation to wake is hesitant. And yes, I am using both a passcode AND touch ID. I'd been dealing with this for a few days and it's very frustrating. I started to wonder if my touch ID or the home button itself was going bad, then I decided to test out a theory last night. I turned my touch ID off, but left my passcode on, and I got the same results. THEN, I turned off my passcode too, and as soon as I did that, my wake action went back to normal. I was surprised, because this means my home button is FINE,... it must be the iOS being buggy. But then I wondered, if it was a fluke and if I put my passcode and touch ID back on, if it would be fine now or if it would go back to being glitchy... unfortunately, it went back to being glitchy. I turned it all off and on several times, and in different combinations, with only the passcode on, but touch ID off, and using 4 digit code vs a 6 digit code vs alpha code, etc... but no matter what, as long as touch ID OR passcode is on, I get the glitch. It's very frustrating. So, for now, I decided to keep them both OFF... just so that my phone will wake up properly at least. I'm hoping that the upcoming iOS updates will fix this bug soon !!! Because not only is it highly frustrating, but it's a little scary knowing that my phone isn't passcode protected at the minimum, and another disadvantage of not having it on is that I can't use Apple Pay until I turn it back on. Once I turn that off, my stored credit cards in Apple Pay get deleted (for security reasons, which is good), but I do enjoy using Apple Pay at my stores I shop at that take them :-( I'll take my chances tho for now leaving it all turned off, for the wake of not pulling my hair out having to deal with a 10 second wake to use my phone every single time. Ugh !! If anyone else has this issue, I'd like to know your scenario, and also wondering if you could test out turning your passcode and touch ID off, to see if it works. I'm definitely going to report all of this to Apple. So far, everywhere in forums where people are complaining about the wake being super laggy, no one has mentioned that they tried to turn off their passcode and touch ID. For me... this at least allowed my wake to work, but now I'm not secure and locked. 😟

Oct 22, 2017 12:09 PM in response to sstylermacuser

Same here - I had to revert to the previous 12.6.2.20 version from the iTunes download site. I don't use my iPhone for music - just Apps - so very peed off that they removed this functionality - or at least did not replace the ability to browse, backup and restore using a separate programme. Sales of Apps will plummet because if Apple think I'm going to get square eyes trying to browse and read apps on an iPhone - forget it. Game over man.


And if you are unfortunate enough to be on IOS 11 like me, there's no going back - an earlier version of iTunes won't backup / Restore.

Oct 22, 2017 8:24 PM in response to coldplay5467

So....I take this comment back. It helped but didn’t fix it 😟 My main issue is that it takes long for iMessage to respond when I type. If I disabled then enable iMessages from the Settings, it improves it temporarily. This tells me it’s definitely a BUG. I’m really disturbed that Apple has yet to fix it.


P.S. I have decided not to update to macOS High Sierra in fear that it may also slow my Macbook Pro down.

Oct 27, 2017 6:32 AM in response to Marc007@

I have iPhone 7 Plus and I started years ago with the 4 s. I am a devoted Apple fan and my opinion is that every iPhone upgrade has been more disappointing that the last . My experience., IPad = great ! iPhone 4s = true love, I phone 5 = beginning to notice a decline , iPhone 7 = not much different that the 5 , exchanged to the iPhone 7 Plus = very disappointing, functionality and not worth the iPhone name nor the price. Last upgrade to current: 11.0.3 my phone has so many problems, bugs, issues I don’t know where to begin. Right now this page is not set properly, format not fitting . 1st letter of each line I can only see half of the first letter. I am waiting anxiously for the next update praying 🙏 it fixes this 11.0.3 update on the iPhone 7 Plus which btw was the most current phone when I purchased it. Within a few months of purchase the 8 came out. I feel customer service should have informed me of the soon to arrive new phone although I have heard it is worse that the 7plus. If I could I would go back to the iPhone 6 because I believe that was the last worthy iPhone. Any others feel the same or differently? Please respond JAT

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iPhone 6 very slow with IOS 11 update

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