iPhone After Update to iOS Extremely Slow - First Aid

If you have updated your iPhone to the new iOS 11, you may have noticed that the performance of the device has deteriorated. For example, the iPhone may appear extremely slow overall compared to its predecessor. It is also possible that the battery runs out faster and the device gets warm. If this applies to your iPhone after the firmware update to iOS 11, one of the following tips might help to restore performance:

Tip 1: Restart iPhone

Often it helps to restart your iPhone just once. This causes iOS 11 to be reloaded, which can improve performance.

Tip 2: Soft Reset

With a soft, the system will be restarted from now on. It also deletes cache files and reboots the iOS 11 system on your iPhone. To restart Soft Restart on your iPhone, follow these steps:

For models: iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s, iPhone 6s Plus, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus

Press and hold the following keys simultaneously for about 10 seconds:

  • Power On/ Off
  • Home button

For iPhone 8 and iPhone X:

  • Instructions for Soft Reset

The Soft Reset often helps to improve the performance problem after iOS 11.

Tip 3: Create backup, reset factory settings, restore backups

Make a backup of your iPhone. The iPhone then resets to factory defaults and restores your data.

Tip 4: Create backup, reset factory settings

This is the radical method. Here you don't have to play your backup anymore, which means that you have to set up the device completely new and mix it up on photos etc. first. Before you take this step, we recommend you to live with iOS 11 and the bad performance on your iPhone for a few weeks. After all, Apple often releases a new version after a short period of time that fixes performance problems.


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