Detailed tutorial on how to downgrade iOS15 without losing data and solve the problem of white apple after downgrading

Have you upgraded your iPhone to the iOS 16 Beta version? Many people now choose to upgrade to the iOS 16 Beta version, but it should be noted that since iOS 16 is not an official version, there are usually many bugs. Therefore, many users want to go back to iOS 15 after experiencing the new features. However, some users reported that their iPhones had white apples after downgrading to iOS 15. So, how to downgrade to iOS 15 safely? What should I do if white apples appear after downgrading? Below I will introduce the steps in detail to you.

1. Back up the entire iPhone data

Whether you are upgrading or downgrading the iOS system, it is recommended to back up the entire iPhone data before operation. This can avoid data loss problems caused by upgrade failure, upgrade or downgrade resulting in bugs in the iOS system, or attempts to downgrade the iOS system. Therefore, backing up data is a very important step to ensure the security of our data.

In order to downgrade the iOS system without losing data, we need to back up the data in advance. This way, during the downgrade process, we can easily restore the data.

2. Downgrade iOS16 to iOS15 system

The Apple mobile phone repair tool is used here, which is simple to operate. The downgrade can also fix common bugs in the iOS system, especially for novice users. friendly.

First, you need to search for and download a repair tool for Apple phones on the Internet. Once the download is complete, you can open the tool and connect your iPhone to your computer using a data cable. Next, you will find the option to repair iOS system issues on the tool interface, click on it to start the repair process. This will help you solve possible iOS system problems and get your iPhone back to normal operation.

The second step is to select the repair mode and select "Deep Repair".

#The third step is to wait for the software to recognize the device, and then click "Download Firmware". When the firmware download is successful, the repair process will begin. The entire repair process takes about 10 minutes. Please be careful not to disconnect the data cable during the repair process and wait patiently until "Repair Completed" is displayed.

Now, the iPhone has been successfully downgraded to iOS 15 system. After the downgrade is completed, you only need to restore the iTunes data on the whole machine. If your iPhone has a white apple problem after downgrading to iOS 15 using other methods, you can also try to use the deep repair function of Apple's mobile phone repair tool to solve this problem!

3. Restore the backed up data of the entire device

If you have backed up your iOS device before upgrading, you can directly use the backup file to restore it when restoring iTunes backup data. This ensures that your data and settings are fully restored to your new iOS device.

If there are system differences between the backed up data and the current iPhone system, the backup may be incompatible and the restore may fail.

Please open the iTunes backup folder on your computer and find the file named info.plist in the backup folder. Please refer to the screenshot below for the specific location.

First, we need to open the backup file and view it as a text file. Then, we need to search for the keyword "Product" in the file and change the number 16 to 15. This operation can help us achieve some specific goals or needs. For example, if we need to change the version number of a certain product from 16 to 15, or need to modify the quantity of a certain product, etc. Through this operation, we can quickly make modifications without having to manually find and edit every relevant place. In this way, we can complete our tasks more efficiently and accurately.

To restore the backup again, please return to iTunes and select your modified backup to restore. This will allow you to begin the recovery process.

Have you successfully downgraded your iPhone from iOS 16 to iOS 15 with the above tutorial? If you want to know more about how to solve iOS system failures, you can click on the special tutorial to view it!

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