What to do if IOS 15.7 fails to update

The iOS system of Apple is very smooth and easy to use, which is one of the reasons why Apple mobile phones are so popular. In addition to the official version of the system update, Apple will also push the test version of the system to users. Recently, the latest version is the trial version of Apple IOS 15.7. I believe that many Apple users have successfully updated, but there are also users who encounter update failures, Come and see the specific solution with the mouse!

What should I do if the IOS15.7 update fails? How to solve IOS15.7 update failure

1、 Incorrect installation method

1. First of all, since the beta version is released this time, we need to download the description file before updating, and cannot directly install it in the system update.

2. Download the ios15 description file, and then enter the settings to install it in the description file.

2、 Model not supported

At present, the models supporting ios15 are: iPhone 11 series, iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE (first generation), iPhone SE (second generation), iPod touch (seventh generation)

3、 The network connection is not normal

After downloading the description file, the ios15 system ontology still needs to be downloaded online. Therefore, if the network connection is abnormal, the installation may fail.

4、 Out of memory

We can delete unnecessary applications and files in the storage space.

If the update of the IOS 15.7 test version system fails, you should first find out what the reason is so that you can try to update it again. If you haven't updated the system on your mobile phone, you can try downloading files!