What's wrong with the update of IOS 15.7

The iOS operating system that comes with Apple's mobile phone is very famous in the industry. Both the system optimization and the fluency are top notch. Compared with Android, users will have a better experience. Recently, Apple officially pushed the test version of IOS 15.7 to users. This system looks very good, but some users will encounter errors or failures in updating IOS 15.7, Now let the mice introduce the specific reasons!

What's wrong with updating IOS15.7? What is the reason for 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 Apple users fail to update the IOS 15.7 version, they can follow the methods in the article to find out the specific reasons, and then try to update again. This version of the operating system is very good.