Question 1

What are IPSW files?

Accepted Answer

IPSW (an abbreviation for iPhone/iPad/iPod Software) is the file format used by Apple to distribute firmware for its mobile operating systems, including iOS and iPadOS. These files are essential for performing a full restore or update of a device through a computer using Finder (on macOS) or iTunes (on Windows).

Question 2

What is the difference between iOS, iPadOS, and IPSW?

Accepted Answer

iOS is the operating system that runs on iPhones and iPod touches.
iPadOS is a version of iOS specifically tailored for the larger screens and multitasking capabilities of iPads.
IPSW is the container file that holds the entire operating system (either iOS or iPadOS). When you download a file from our site, you are downloading an IPSW file.

Question 3

Where do these files come from? Are they safe?

Accepted Answer

This is a crucial question. All download links on dotIPSW point directly to Apple's official servers. We do not host, modify, or package any files ourselves. Our site simply acts as an organized and user-friendly directory. This guarantees that every file you download is 100% authentic, secure, and exactly as Apple provides it.

Question 4

What do "Signed" and "Unsigned" mean?

Accepted Answer

This status indicates whether Apple still authorizes the installation of a particular firmware version.

Signed: A "signed" version is one that Apple's servers will approve for installation. You can only restore your device to a version that is currently being signed. This is usually the latest public version and sometimes one or two previous versions.
Unsigned: An "unsigned" version is an older firmware that Apple no longer authorizes. You cannot restore your device to an unsigned version through the standard process.

Question 5

How do I make sure I download the correct IPSW file?

Accepted Answer

The best way is to match your device's Model Identifier. Every iPhone or iPad model has a unique identifier (e.g., 'iPhone16,2' or 'iPad14,3'). On our site, each device page clearly displays this identifier. Ensure you are downloading a file from the page where the Model Identifier exactly matches your device. If you download the wrong file, don't worry, the restore process will simply fail and will not harm your device.

Question 6

What happens if I download a file that is not compatible with my device?

Accepted Answer

The restore process will fail. Apple's software (Finder/iTunes) checks the compatibility of the IPSW file with your device's model identifier before starting the installation. If the file is incorrect, you will receive an error message, and no changes will be made to your device. You can then download the correct file for your specific model identifier.

Question 7

Can I downgrade to an older iOS version that is no longer signed?

Accepted Answer

For most users, the answer is no. The standard restore process requires Apple's signature, which is unavailable for older, unsigned versions. Advanced users may be familiar with methods involving saved "SHSH blobs," but this is a complex process not supported or recommended for the average user.

Question 8

Is dotIPSW affiliated with Apple?

Accepted Answer

No. dotIPSW is an independent project and is not affiliated with, sponsored by, or endorsed by Apple Inc. in any way.

Frequently Asked Questions