.IM4M File Extension

IMG4 Manifest

Developer Apple
1.0  |  1 Vote

What is an IM4M file?

An IM4M file is a digital signature used by Apple devices. It contains information that a device uses to confirm that other boot files are authentic and have not been tampered with. Apple Watches, iPhones, iPads, and Macs all use IM4M files.

More Information

During their boot processes, Apple devices load several files used to verify their hardware and operating system's integrity. Some of these files are saved in the IM4P, or IMG4 Payload, format. IM4P files are paired with accompanying IM4M, or IMG4 Manifest, files, which a device uses to verify that the IM4P files contain the correct data.

How to open an IM4M file

IM4M files are not meant to be opened. Additionally, in most cases, you should not delete, move, or otherwise alter IM4M files.

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Programs that open or reference IM4M files

Included with OS
Included with OS

Verified by FileInfo.com

The FileInfo.com team has independently researched the IMG4 Manifest file format and Mac and iOS apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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