IOS9 upgrade mobile data toggle not working

I am also having this problem with my iPhone 6 plus. I really like the fact that someone send a tweet in Cook's account!

Also, I would like to express my dissatisfaction with Apple's many bugs that are continue to occur the last two years.... I like the fact that we have many !obvious! features implemented in every new release of both iOS and Mac OS but the bugs that exists in every new version are very irritating and are not fixed for quite a time... I am really sad for this drop in quality that Apple has lately...(and I am huge fun and user for a long time...)

I was able to resolve the issue by running Itunes and restore to previous backup. I can now toggle on/off apps for use cellular data.

connect your device to the computer and run Itunes, select restore from previous backup.

Hi- I am from India and upgraded to ios9 yesterday (20 Sept), now facing the same issue 😟. I realized it today when I came out from home and do not have wifi to connect.

Is it advisable to roll back to ios 8.4.1 - can anybody help me with the procedure.

Did full reset on iphone 6 plus still mobile data toggle not working. Lost 6hrs in the process, might have to put sim card back in Galaxy Note. Apple you are a joke.

I have same issue on 6 plus iOS 9 - Apple please fix, rely on phone for work

I am having the exact same issue on my iphone 6. The toggle for cellular data won't work. It just reverts back.

We need this fixed! please help...

I have the ipad air and I am having the same issue .. even after removing the apps and reinstalling them I am unable to change the settings from what they were before the upgrade.

Is anyone running iOS 9.1 beta? Just curious if the same issue is occurring with that build as well.....just a thought

According to a number of users in the support community, the issue persists on the 9.1 beta.

I have the same problem

If someone finds a solution please share.

Update on the Per-App Cellular Data Toggle Switch Issue:

A number of users, myself included are experiencing this issue.

Here’s a concise summary of the issue:

The issue concerns the cellular data app toggle switches in iOS 9. For example, when a user turns a switch "on"from an "off" position, the setting is not respected by the system. The switch will appear to change to "on", but if you try to use the affected app, it won't permit cellular data to go through. Then, if you go back and check the cellular data app switches in the Settings app, you can see that the switch has reverted back to its previous position, in this case "off”. Any users with cellular toggle switches in the "off" position before updating to iOS 9 now have the toggles stuck there.

There is an active thread going with users troubleshooting and posting updates. Feel welcome to join the thread and post any info you have and updates. You can find that thread here: https://discussions.apple.com/thread/7219001

So far, we have at least one solid confirmation that wiping and doing a clean install does not permanently address the problem. This suggests we need to wait for Apple engineers to find the issue, and issue a point update (think iOS 9.0.1) to fix the issue.

We'll need to be a bit patient because the process may take awhile, but calling in to Apple support and working with the techs may be helpful so they can collect more data. The more people that report the issue, the higher a priority it will be to fix it. Also, turn on the option in Settings to send Apple your diagnostic data (if possible). And follow the thread mentioned above.

Other sites have picked up on it:

http://www.uswitch.com/mobiles/news/2015/09/ios_9_users_report_missing_spotlight _contacts_and_mobile_data_issues/

APPLE solve this issue, **** this is very annoying i cant use my phone on mobile data all apps are ******

Hi.

Found this thread searching for a fix for the same problem. I have both an iPhone6 and iPhone6+ and upgraded both to iOS 9 a few days ago.

SETTINGS-->CELLULAR-->USE CELLULAR DATA FOR:

(Apple apps such as Mail, Numbers, Keynote, etc do not "keep" configuration changes to "turn on")

I only have this problem on the iPhone6 and all is OK on the iPhone6+...

I think this is related to the settings above before the iOS upgrade.

Hmmmm

Hope Apple fixes this soon and I have to turn on WIFI to send and receive Mail with the Apple Mail app.

Cheers!