iPhone 14 Pro Getting back to iOS 16 from iOS 17 on iPhone 14 Pro

[martyna6277]

My iPhone updated to iOS 17 and the battery started draining terribly fast.

I tried formatting it and restoring it from a backup from before the update to 17 to get back to iOS 16, but unfortunately to no success.

Is there any way to get back to the previous system?

 

[TriciaMacMillan]

No.

But if your battery is draining faster, did you wait a few days? It usually normalizes after a while. In my case, I remember it took 4 days last time, which seemed unusual, but now it’s back to normal battery usage.

 

[martyna6277]

No.

But if your battery is draining faster, did you wait a few days? It usually normalizes after a while. In my case, I remember it took 4 days last time, which seemed unusual, but now it’s back to normal battery usage.

You have just brought back my hope that something will improve with this. I'm going to wait a few more days (it updated 2 days ago) and hope it's back to normal, because now I can't go to work without a charger, and before that the iPhone lasted me almost all day.

 

[GoofyCyborg]

No, you're stuck with iOS 17.

 

[eyoungren]

I tried formatting it and restoring it from a backup from before the update to 17 to get back to iOS 16, but unfortunately to no success.

By 'formatting it' you mean restoring correct? You can't actually 'format' an iPhone like a hard drive or SSD or memory card. Apple won't let you, even if you were jailbroken.

Invisible to the user, an iPhone has two partitions. The first is the System partition and the second is the User partition. System files are stored on the System partition and when you do a restore, the device restores to that partition. Only the device/Apple can access the System partition when not jailbroken. A jailbreak can give you access, but can't change anything as a user.

The User partition is where apps and data are stored, including all the settings in the Settings app. It's only that stuff that gets backed up in a backup to a computer, and only user data to iCloud (no actual apps). No system files exist in your backups.

So, when you do a 'formatting it' you are not restoring to a previous version of iOS because that is NOT what's in the backup.

Lastly, Apple has what is known as digital signing for iOS. As long as Apple keeps signing a version of iOS then you can actually choose on the device (or using an IPSW) to restore back to a previous iOS version.

But Apple doesn't keep signing older versions of iOS for very long. Your device will check and if Apple is not signing it, you cannot restore to an older version. Apple stops signing because they WANT you to update/upgrade. So they make it very difficult, if not impossible, to roll back.

Is there any way to get back to the previous system?

As others have stated, and for the reason I gave above, no. No way back.

 

[martyna6277]

By 'formatting it' you mean restoring correct? You can't actually 'format' an iPhone like a hard drive or SSD or memory card. Apple won't let you, even if you were jailbroken.

Invisible to the user, an iPhone has two partitions. The first is the System partition and the second is the User partition. System files are stored on the System partition and when you do a restore, the device restores to that partition. Only the device/Apple can access the System partition when not jailbroken. A jailbreak can give you access, but can't change anything as a user.

The User partition is where apps and data are stored, including all the settings in the Settings app. It's only that stuff that gets backed up in a backup to a computer, and only user data to iCloud (no actual apps). No system files exist in your backups.

So, when you do a 'formatting it' you are not restoring to a previous version of iOS because that is NOT what's in the backup.

Lastly, Apple has what is known as digital signing for iOS. As long as Apple keeps signing a version of iOS then you can actually choose on the device (or using an IPSW) to restore back to a previous iOS version.

But Apple doesn't keep signing older versions of iOS for very long. Your device will check and if Apple is not signing it, you cannot restore to an older version. Apple stops signing because they WANT you to update/upgrade. So they make it very difficult, if not impossible, to roll back.


As others have stated, and for the reason I gave above, no. No way back.

Thank you so much for you answer! I'm not happy with iOS 17 but I have hope that battery will back to normal after few days

 

[Reverend Benny]

Thank you so much for you answer! I'm not happy with iOS 17 but I have hope that battery will back to normal after few days

The network issues that seem to affect some users will most likely be addressed in the next update according to rumors.
Hopefully 17.1.2 is released this week.