


Perhaps the network connection you are using is raising the problem. Check the storage and remove unnecessary stuff to make space. Go to 'Settings' > 'General' > 'iPhone Storage. So, as the next tip, we suggest you check your device's storage when you are unable to get the iOS 16 update because of grayed-out 'Download and Install button. Follow this tip and check if the problem vanishes.īesides the battery, any new update also takes the storage. Hence, we recommend you to get your charger and give the battery digits a hike making it more than 50%. Thus, if your device's battery is not more than 50%, the downloading will not be supported and the "Download and Install" Button may be grayed out. Use iTunes to Install iOS 16 FirmwareĪn iOS update process generally uses up more battery than any other app or process. Also, ensure that the iPhone has at least 50% battery before starting the software update process. Make sure your iPhone is connected to a Wi-Fi network or 5G network to quickly download it. Then, click on “Install Now” to update your iPhone to iOS 16.4. To download and install iOS 16.4, go to Settings > General > Software Update and enable automatic updates. Users can install these updates via a Wi-Fi network, or they can download and install them using the 5G network. However, if you were on an earlier version of iOS 16, the update could be as big as 5GB. If you were on iOS 16.3.1, then the iOS 16.4 update will be around 1.8GB in size.

Additionally, the update further optimizes crash detection on the iPhone 14, iPhone 14 Plus, iPhone 14 Pro, and the iPhone 14 Pro Max, and is now available in more markets. This latest iterative update fixes some bugs and introduces minor new features, such as 21 new emojis. Apple has finally released the stable iOS 16.4 update for all eligible iPhones.
