Many Apple fans running iOS 10.1 report that they are satisfied with it, yet a few users are not too happy with the performance. Some even say that they liked the earlier version of the iOS, which gave better delivery.
Some users complain about loss of records: "As it stands the facts for affected users are as follows: once iOS 10.1 is installed on an iPhone or iPad, all that users' Apple Health data (activity, sleep and nutrition records) are lost and reboots and even factory resets do not bring it back."
Even some bugs have been reported: "a looped reboot, iBooks refusing to delete and push notifications not working."
If you belong to the group that does not like the iOS 10.1, then you can go through this easy and quick guide for downgrading to iOS 10.
It is well-known that Apple does not really support iOS update downgrades, although there is a slight chance of doing it in iTunes. Users do not even have the possibility of installing iOS 9.3.5. Still, downgrading to iOS 10.0.2 is still open.
But If you want to move on to iOS 9.3 from 9.2, you can forget it. Moreover, the "jailbreak-able variants of iOS" cannot be hoped to get accomplished for your downgrades.
Anyway, these are the steps you can take to go back to iOS 10:
Back up: First, keep a back-up of your data on your PC or Mac. Downgrading the OS will simply wipe out everything on your phone. After the downgrade, the iOS 10.1 back-up will not go to iOS 10. Hence, do not forget to have your data in back-up form, in case you are not able to downgrade.
Download and install iOS 10: Plug into your PC or Mac computer via the Lightning cable. Check that you have the iOS 10.0.2 update file.
Go to this cool official repository. Now this is where you can download the appropriate .ipsw files for iOS 10.0.2, for both the iPad and iPhone.
Is the table row green? Is there a check mark near the Apple Signing Status? If you notice that Apple does not sign iOS 10.0.2, then just.....halt it!
Install iOS 10.0.2: Once the download of the file is done to your PC or Mac, you need to unzip it if that seems to be called for. With your mobile device, you can connect via Lightning cable and open iTunes. The device summary page of your iOS carrying phone or tablet can be checked out.
Now you need to disable "Find my iPhone." Click on the "Restore iPhone" button, and go to the prompt. Then locate and select the iOS 10.0.2 ipsw file that you downloaded some time back.
You will now get the notification that everything is going to get deleted by iTunes, while your phone will be restored to iOS 10.0.2, which will be Apple-verified. So tap on the "Restore" to activate the process, and wait for it to complete.
And hey presto. Your iPhone/iPad running iOS 10.0.2 is now available.
