- From the Home screen, choose Settings.
- Select General.
- Select iPhone Storage from the menu.
On the next screen, you can see how much RAM is available. You'll need to free up more space if the available storage space is less than 1GB. Delete any obsolete or undesirable stuff, such as applications, texts, images, videos, and audio files, that are no longer required. You may also use iTunes or iCloud to back up your other crucial data to a PC.