The only problem I've encountered with iOS9 is that my battery behaves normal everywhere else, and low power mode is a super solution - but - when using video on skype it goes from 95% battery to 15% battery in 6 minutes. Obviously, that's wrong. If I then open something like iMessage, it just goes black and wants me to charge (charging it for 30 seconds and it says 89% left..) if I stop using Skype video it will operate just fine the rest of the day and it will take hours before it even gets close to 20% But iMsg and Skype for some reason cause the device to think its dead on the battery.
I am comparing how it was before I upgraded to iOS9 vs after. Normally I can easily get hours of video out of FaceTime / Skype and just having iMessage open doesn't even touch single % of battery. The iOS9 on iPhone 5s for me changed that to 'dead in under 15 minutes'. But the battery isn't actually empty, plug it in to change and it shows how much is actually left. The iPad with iOS9 and 9.1 beta doesn't have this issue whatsoever and works the same as in iOS8.Not a solution but somebody told me... don't use facebook or skype on iPhone. And it works, at least. Battery life is increased.
When I first installed iOS 9 I had similar problems, iMessage wasn't activating I went in and reset the network settings, stayed off wifi went in and re-enabled it in FaceTime first then in iMessage and now all is fineThe only problem I have on my 5s is that I can't make FaceTime calls. I'll open the app select a contact it acts like it's going to make a call then just go back to my contacts.
I let my phone sit over night on a fresh install before I added any apps or photos, or music. So I know it had to be done indexing, idk it seems like it's just affecting certain people I solved this "temporarily" by disabling Siri spotlight suggestionsThat's weird. I've the same iPhone and it's working better than before.
Remember, Spotlight may be indexing your device and it takes a time (one hour, I guess).
Meanwhile, don't install apps.
I found disabling the Siri spotlight suggestions fixed all the lag other then the shutter crap with the app switcher. Might give it s try, to me that boiled it down to mainly being the spotlight is bugged out, could be wrong thoLag is apparent on iOS 9 on all devices except the iPhone 5/5c and iPad Air 2. Don't fret.
iOS 9 is a terrible release. Downgrading is still possible, so try it out if lag drives you crazy. I had to downgrade to 8.4.1 on my 5s because of the lag.
I found disabling the Siri spotlight suggestions fixed all the lag other then the shutter crap with the app switcher. Might give it s try, to me that boiled it down to mainly being the spotlight is bugged out, could be wrong tho
I tried this it didn't work :"( the only thing that helps is disabling spotlightMore people need to try the fix we posted.
Got lag on your iPhone 6 Plus with iOS9? Try this, fixed it for me. Go into settings and turn on "Reduce Transparency"
Settings->General->Accesibility->Increase Contrast-Reduce Transparency.
iPhone should be quick now. Then go back in and turn it off again. No more lag!
Agreed sorry but cook doesn't know what he is doing.But see this is my point, we shouldn't have to downgrade anything, I'm not trying to sound like a jerk, but they had to of known of this, why push the software out like this? Lately Apple is doing nothing besides giving there self a bad name