Now it's iOS 15beta7. What if I want to update the official version but I don't receive a push?

Ensure that the device supports updating to iOS 15/iPadOS 15.

Check whether there is a beta description file: users who have previously upgraded to beta need to go to Settings-General, click Profile and Device Management, delete the beta description file, restart the device, and then check the update in the software update.

If there is not enough space to download and install updates, the software on the device will try to make room. It will only remove downloadable application data, and will not remove or relocate any of your data.

Downloading updates takes too long:

You need an Internet connection to update your device. The time required to download the update varies depending on the update size and network speed. You can use the device normally when downloading the update, and then the device will inform you when you can install the update. In order to improve the download speed, please avoid downloading other content and use Wi-Fi network as much as possible.

When you try to update the device, you may see one of the following messages: "Unable to check for updates. An error occurred while checking for software updates. Or "Unable to install the update. You need to access the network to update.