Fix Cydia Impactor Not Working Issue in iOS 11


After updating an iPhone, iPad or iPod Touch to iOS 11, users are facing issues with Cydia Impactor, mostly “lockdown error 52” when trying to sideload apps using .ipa files. In this tutorial, we will cover few methods to fix Cydia Impactor to make it compatible with iOS 11.

Cydia Impactor is a tool developed by Saurik. It is used for installing apps on iOS devices like iPhone and iPad using the .ipa files.

Cydia Impactor Not Working iOS 11


It is available for Windows, Mac and Linux and supports both 32 bit and 64 bit systems. The program uses the Master Key exploit to get into the iOS file system. Once it gets there, you can easily sideload .ipa files on your iPhone or iPad.

How to Fix Cydia Impactor Not Working Issue in iOS 11

The issue arises when users try to sideload apps on iPhone from Windows through Cydia Impactor. The error messages reads “locksdown.cpp:57. LOCKDOWN_E_PLIST_ERROR”.

In case you are wondering that why one should use Cydia Impactor to sideload iOS apps when there are lot other tools like xCode and iTunes. The justification for using Cydia Impactor is that it is compatible with all major operating systems.

Anyways, coming back to our original topic, the error can be fixed by following any of the method below.

Method 1: Update Cydia Impactor

Saurik has instantly took the notice of the issue and released an updated version of Cydia Impactor. New version is compatible with iOS 11. Download the latest version from official web and install it.

Method 2: Downgrade your iOS Device to iOS 10.3.3

If the issue still persists, you will need to downgrade your iPhone or iPad to iOS 10.3.3 which is the latest stable iOS from Apple. Since iOS 11 is still in beta phases, the issue might be with iOS 11 too. So better to downgrade to stable version.

Let us know if there is another method to fix Cydia Impactor issue in iOS 11, which we have not covered.

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