iphone upgrade ios7.1 Hint This update is not installed What do you mean? How to Solve

1. Click on the "Settings" button in the Apple phone to enter, as shown.

2. Click the "General" menu to enter in the Open interface.

3. OK in this list there is a "dosage" menu we click on it.

4. Then the system will detect how much of your cell phone storage space, as shown in the following figure.

5. If there is not enough space we will see the following application Occupation list, we can delete these occupy a larger application, especially album, video and so on.

6. If we click to delete an application click "Delete Application"

7. Then in the pop-up prompts us to click "Delete Application" so that the program's data and applications have been deleted.

All right, we can try again with iOS to refresh the space, and see if we can upgrade iOS7 now. Oh,