iOS 11 incredibly slow on iPhone 7 Plus

So frustrated - iOS11 installed perfectly and works great on my iPad Pro. Installed on my iPhone 7plus (with 90GB free space) a few hours later and the phone is essentially unusable. The install went OK but when I click on any app (3rd party or native iOS - like Mail or Messenger) - there is a 20 second delay before the app opens. Unable to make or receive phone calls, texts.


Reset network settings, then all settings, then a complete erase / restore - still slow as Christmas. My phone, at this time, is essentially useless. Google Searches don't show this as a common problem - I'm hoping someone here has experienced this and has a suggestion?

iPhone 7 Plus, iOS 10.2

Posted on Sep 19, 2017 8:25 PM

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Posted on Sep 20, 2017 9:38 AM

I'll join the choir.
I have the exact same problems on my iPhone 7 (128 GB): Extreme lag, no sound, no vibration. I've tried reinstalling as new phone without it helping. Rolling back to 10.3.3 gave me a working phone again.


Please fix this ASP!

147 replies

Sep 27, 2017 11:37 PM in response to hgpilot2

I noticed another error yesterday before I talked to Apple Support.

After installing iOS 11 and got no sound, I wanted to see if maybe audio from video would work. I surfed to youtube and tried playing a random video. That just got me an error - couldn't play the video. I tried multiple videos, all with the same outcome. Back in iOS10 I tried the same videos and they all played without problems.

Sep 29, 2017 3:07 PM in response to Philly_Phan

Indeed I will 🙂 The reason I'm going is that the Apple rep, who I've been in contact with by phone and email over the last week, hasn't responded for three days, despite daily requests for an update with my case, so I've basically just lost faith. The engineers have had two lots of logs for five days and so far, come up with no suggestion for a fix what so ever.

Oct 9, 2017 7:05 AM in response to broadwayltd

So frustrating, I've tried with no success to roll back to iOS 10. Looks like I'll be making the drive out to my closest Apple store as I really can't wait for Apple to get it together. 😟 It seems like this has been an issue they've been aware of for quite some time so it's pretty shocking they haven't addressed it yet in any of those 3 patches

Oct 10, 2017 4:52 AM in response to hgpilot2

none. zip. like i posted earlier don't expect help for any issue not related to ios11 that does not affect the 8, 8+ and "X" if it ever ships. i trust apple and i really believe, with the release of three new HW platforms and a major firmware release all at the same time , they are resource constrained. having said that let me also say ENOUGH FIX THE F!@#$%$^ PROBLEM APPLE. ahh i feel better now ;-)

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iOS 11 incredibly slow on iPhone 7 Plus

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