How to block the update prompt of ios 15?

The steps to intercept the download address of ios 15 update description file are as follows:

Tools: iPhone 13, iOS 15. 1, settings 15. 1.

Step 1: Delete invalid description file and downloaded firmware.

Go to iPhone Settings-General-Profile and Device Management to remove previously downloaded and invalid profiles. If the system has automatically downloaded the latest version of iOS firmware, please go to iPhone Settings-General -"iPhone Storage to delete the downloaded firmware and restart the phone.

Step 2: Get the description file through AISI Assistant.

How to get it: Open the PC side of AISI Assistant, connect the device to the computer through the data cable, and click the "Stop iOS Update" function in AISI Assistant Toolbox to start using it. Make sure the device is unlocked, and then click Send Profile to Device. AISI Assistant will prompt you to install the profile on the device.

Step 3: Install the profile in the device settings.

Open the settings in the mobile device, and in General-Profile (or Settings-General-"VPN and Device Management"), click the profile to install.

Step 4: Restart the device according to the prompt.

After the restart, it has been completed. At this time, there will be an extra "feedback" application on the desktop, which is Apple's official software and does not need to be opened. However, this application cannot be deleted directly. It can be deleted from the desktop, but it will still remain in the application library.