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

Jan 30, 2018 7:24 PM in response to jnajdzion

jnajdzion wrote:


I got my wife's iPhone 6 a new battery yesterday from the Apple store, it took 2 weeks to get the battery, got there around 6:20 PM and left at 7:20 PM, the phone is working great now, only $30 bucks, and she is happy, and so I am happy, glad Apple offered this deal,

Yup!

Great to learn this!

A new iPhone 6 battery WILL AND DOES cure most of the iPhone 6/6S/6S Plus performance ills under iOS11!

That's what a new battery will do for every iPhone 6 and 6 variant model.

Restore the phone to its former performance levels!

Apr 3, 2018 12:25 PM in response to agodfrin

Sorry, but that is not true.

Now without changing any battery, the iPhone now goes well for me, and for other users...

It was really a bad action by apple the IOS11, now they have repaired it with the 11.3; yes it was a mess, really a mess. Do not asume it is not say the truth.

Now if you want more duration for your iPhone, change the battery.

The story of the peaks of use... it an story for children.....

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iPhone 6 very slow with IOS 11 update

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