iOS 9, Cellular settings not saving

Noticed this after iOS 9 upgrade, also, on an iPhone 6 plus. Problem exists in cellular setting going through "settings, cellular" as well as individual app settings. I have noticed that it's not all my apps, but definitely every one that was previously had cellular disabled. I noticed it first with the new News app. I initially disabled cellular, and today find that I cannot enable it. A random sample of those that had cellular enabled prior to the update have no problem changing the setting.

My wife also upgraded her iPhone 6plus, and so far her phone is not exhibiting this problem.

I Have tried various combos of changing the settings, quitting all apps, and rebooting the phone, to no avail. I have also attempted a "reset all settings", which did not fix the problem, but did keep me busy for a couple hours setting the phone up again. Sigh.

An additional data point: checked my ipad2, after upgrading to iOS 9, and all the apps that had cellular disabled before the update are stuck. Can't enable cellular for them. Same behavior as my iPhone.

I'm having the EXACT issue with my phone.

I am having the same issue that activating Cellular Data for the iTunes and the Music app isn't accepted under iOS 9 - toggles are automatically turned off once I return to the settings App. This happened since I was "forced" to use the iOS 9 beta on my 64 GB iPhone 6 plus, as under iOS 8.4.1 out of the blue iTunes didn't allow access to the iPhone anymore, Apps weren't installed anymore by the Appstore App, the iTunes and the Apple Store apps froze and Mail didn't open Safari-Links anymore. A reboot solved the issue for about 15/20 minutes only. I had this issue on three service-exchanged iPhones, I even swapped the SIM-Card at T-Mobile; Restoring from local backups and from iCloud backups did't work, neither did a manual install - even setting up a new device with stock apps only led to the phenomenon. iOS 9 beta eliminated these problems – Apple's Chat support said they can't help me adviced me to stick with the Beta (on a productive system!) – no comment on that.

Any solution would be appreciated.

Having the same behaviour... When changing settings for any app, the settings are not saved...

Same problem. Seems to be affecting the ones that were turned off when I did the ios9 update. I can toggle the ones I had turned on before the update on and off. The ones that I had turned off will not save. I even tried deleting the 3rd party apps and reinstalling but that made no difference.

iphone 5s, iOS 9

Same problem running iOS9 on an iPhone 5s.

I'm having the exact same issue on my iPhone 6 (actually had the issue since trying out the public bèta). Kinda hoped the final version of ios 9 would fix te problem, but alas.

Same problem here with iPhone 6. This is something I would expect from Microsoft not Apple. I think the only fix for this now is to go back to ios 8.4.1

Also wanted to add that I upgraded from 8.4.1 -> 9.0. I did not have any betas installed on the iPhone 5s.

have exactly the same issue on iPhone 6. Items that were already ON prior to upgrade are fine but cannot turn on any of the others to access mobile data

Same issue on iPhone 4s. All settings are on and i can't change none of them

reset network settings didn't help...