ack up your iOS device. It's a gray app with gears that's typically located on your home screen.  It's at the top of the menu. If a software update is already downloaded, the Install Now button will appear below the update description. You'll need to accept legal agreements before manually downloading the update. Enter the passcode you use to unlock your phone.  Your phone will restart and the update process will begin. In some cases, you may have to set up your phone again, although all your apps and data should be intact.
आपकी आईओएस डिवाइस का बैकअप कर लें।  सेटिंग्स ओपन करें: नीचे स्क्रॉल करें और General पर टैप करें।  Software Update पर टैप करें: Download and Install या Install Now पर टैप करें: अगर प्रॉम्प्ट हो, तो आपका पासकोड एंटर करें: