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HomeMobile TutorialiPhoneHow to flash and downgrade iPhone? do we need to care something?

When users feel uncomfortable or dissatisfied with the upgraded system version, they may consider downgrading to a previous or earlier version. However, due to limitations of Apple's system, not all versions can be downgraded at will. Here are some ways to downgrade your iPhone and things you need to pay attention to.


View the downgradable version


Currently, after Apple officially turns off the verification of the system version, it cannot pass Flash your device to downgrade to these versions where the verification channel is closed. How to check the current version that can be downgraded and flashed? There are two methods:


#1. Connect the iPhone to the computer through the data cable, open the "Smart Flash" interface, and the current flashable/downgraded version will be directly displayed.


iPhone 如何刷机降级?需要注意哪些事项?


2. Or in the "Smart Flash" - "Download Firmware" interface, select For the model you want to downgrade, check the current versions that can be flashed/downgraded.


Under "Can the phone be flashed?", the green dot represents that the phone can currently be flashed. If there is no green display, it means that the verification has been turned off and the phone cannot be flashed.


iPhone 如何刷机降级?需要注意哪些事项?


##Backup data before flashing


If you are sure to downgrade, please back up the important data in the device before flashing. Due to iOS system limitations, you cannot retain data and directly flash the phone during the downgrade operation, otherwise unpredictable problems may occur. And if you use functions such as Ace full backup and iTunes backup, you cannot restore the backup data in the higher version to the lower version system.


You can use the classified backup function to back up photos, ringtones, address books and other data in the device, but you cannot back up internal application data.


Downgrade steps



Confirm that important data has been backed up, and make sure you know the Apple ID bound to the device With your account and password, you can start flashing and downgrading.


Connect the iPhone to the computer via the data cable, open the "Smart Flash" interface, select the version you want to downgrade (or click "Import" to select the downloaded firmware), Then select the "Regular Quick Flash" mode, click "Flash Now" and wait for the flashing to complete.


iPhone 如何刷机降级?需要注意哪些事项?


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