"There is at least a 5-15 second delay whenever I used the keyboard to type anything on my iPhone 4 after iOS 7 update. Any tip to help iOS 7 run faster? Help!"
Many iPhone 4 users have complained that iPhone runs slow after iOS 7 update. This could ruin new experience with iOS 7. In fact, other users also reported the same issue that iOS 7 is slow on iPhone SE, iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 5, iPhone 4S, or on other iDevices. If you have installed the iOS 7 (including iOS 9.3/9.2/9/8/7) on your device, you can refer to the top 5 ways below on how to fix iPhone running slow after iOS 7 update. All of the methods are also applied to iPad.
Please note that all these ways can also help to fix the battery draining quickly and iPhone getting hot easily after updating to iOS 7.
Apple has stopped its official ways to downgrade from iOS 7 to older iOS versions, so the best choice is to help iOS 7 run faster on an old iPhone after you have installed iOS 7. If you insist to downgrade from iOS 7 to iOS 6, you can refer to the article "How to Downgrade from iOS 7 to iOS 6". Below is how to fix the iPhone slow issue after iOS 7 installed.
One of the most frequently suggested remedy to fix iOS 7 on iPhone running slow, is to stop it from checking for new data on behalf of third-party apps. To do so, you need to go to "Settings" > "General" > "Background App Refresh on your iPhone. Then touch the switch atop that category and you should notice the difference immediately.
Leaving enough storage space free can also dedicate to fix the iOS 7 on iPhone slow issue, and give a little more life to your device. Make sure your iPhone has at least one third of its total storage space available. Go to "Settings" > "General" > "Usage". Then you can see how much you have available versus used.
If the location services in the background are tuned on, it will drains a fair bit of battery life and ties up a little processing power. You can turn it off by heading to "Settings" > "Privacy" > "Location Services" > "System Services". Then turn as many of these off as you see fit.
Restoring settings will help to speed up your iPhone, but it will erase all your Wi-Fi networks, passwords, and all user settings. If you have fully backed up your iPhone settings and passwords before, you can have a try: go to "Settings" > "General" > "Reset" and first choose "Reset Network Settings". Then go back to the Reset menu and choose "Reset All Settings".
The last resort to help iOS 7 run faster on your old iPhone is to do a full restore, which is also called a full re-install of iOS. Lots of users have tried this method and successfully fix their problem. However, original factory settings restore will delete all your iPhone data. You should make sure 100% your data are backed up before you perform factory reset. Do as follows:
Once the restore process is completed, restore iPhone from backup by selecting iPhone from the sidebar, clicking on the File menu > Devices > Restore From Backup. In some cases, if you can't recover data from iTunes, try iPhone Data Recovery to retrieve all the lost data directly from iPhone without backup files.
Share all the methods to anyone who suffers the same issue and help iOS 7 run faster on their iPhone 4/4S/5, and even iPhone 5S, iPhone 5C, or other iOS devices.