iPhone 6 very slow with IOS 11 update

Andrew Shalit wrote:

So, this is not perception or imagination. iPhones with old batteries that were being throttled under previous versions of iOS 11 get an immediate performance improvement when iOS 11.3 is installed, even without a battery replacement. Of course, if you experience unexpected shutdowns or other battery problems, throttling will be turned on. At that point you can live with it, you can turn it off and take your chances with shutdowns, or you can replace the battery.

I believe that's exactly what I said to poster to whom I was replying.

1. I looked at the settings/privacy/analytics/analytics Data - there were a lot of program crashes and dumps on my phone. I ran a backup to Itunes and that removed them and seemed to help.

2. settings/location services/system services/ there are a lot of product improvements that are running on the phones. I turned off iphone analytics, popular near me, routing & traffic , significant Locations (this may impact some of your apps so test them after your turn these settings off) I didn't see any impact on the apps I use.

3. I went through my location sharing at settings/privacy/location services - and changed all the "background" refresh apps to "while using" or "never" to save on my cpu usage for apps that don't really need to update in the background when I'm not using them.

Hi,

You can restore your device to iOS 10

Hi there

There will be a fix soon, iOS 11.1 is currently in beta, so hopefully that'll fix some issues you might be having.

You can still restore your device to iOS 10

I have the same issue on iPhone 6s+ too 😟

for everyone,

Buy iPhone 8 and iPhone 8 Plus - Apple (NZ),,

Apple CEO

WmMStevens wrote:

I have this problem too, and I hope Apple is paying attention -

Not here they're not. Submit your feedback to Apple using the feedback page:

http://www.apple.com/feedback

So far, so good 👍

More info on update:

https://support.apple.com/en-us/HT208067

https://support.apple.com/en-us/HT208401

ninaN85 wrote:

...also, the new iphones don't have an output for headphones and I really need one that has an output.

One is included in the box with the iPhone.

Also available directly from Apple.

You should do the 2 restore (from backup, and as new) first.

Try DFU MODE

Restore to iOS 10.3.3