iPhone 17 (iPhone18,3) - Front view

iPhone 17

iPhone18,3

The iPhone 17 was introduced in 2025, shipped in 256 GB and 512 GB configurations, was offered in Black, White, Mist Blue, Sage and Lavender.

Device facts (year, capacities, colours) from Apple Support. Capacities and colours can vary by model and region.

Firmware Details
Identifier
iPhone18,3
Model Number
A3258, A3519, A3520, A3521
BuildID
24A446
Release Date
September 28, 2026
Filesize
11.88 GB
Filename
iPhone18,3_27.0.1_24A446_Restore.ipsw
SHA256
de6125885921f609bb2e80f85576e03fa5a400ba55d02b8ddaec88a53270316a
SHA1
e242069d879814346453e4a589783f8add3e932e
MD5
3105fa54cbaca2e5b51ba84dbbaa2ffd
Download URL
Verify your device

This page covers everything Apple has published for the iPhone 17 (device identifier iPhone18,3).

Apple sells that device under several model numbers — A3258, A3519, A3520 and A3521 — which cover its regional and connectivity variants, and the firmware on this page works on all of them.

Before downloading, verify this is the correct device model:

  • Go to Settings → General → About on your device
  • Check that Model Number matches: A3258 or A3519 or A3520 or A3521
  • Or verify that Model Name is: iPhone 17

Make sure you select the correct model to avoid installation errors

Support history

Apple's firmware list for the iPhone 17 starts with iOS 26.0 (Sep 16, 2025) and currently ends with iOS 27.0.1 (Sep 29, 2026).

That is 18 releases in total, spanning 1 years between the first and the most recent build.

iOS 27.0.1 is still being signed by Apple, so it can be restored, reinstalled, or updated to with Finder, iTunes, or the Apple Devices app right away.

Every build Apple has published for this device is listed below with its original Apple download link, build ID, release date, and checksums, so an older release can still be verified or archived after Apple stops signing it.

Across that history the device has received 2 major iOS versions: iOS 26 (16 releases) and iOS 27 (2 releases) .

Check downgrade status for the iPhone 17 →

Related devices

Other models in the iPhone 17 family, each with its own firmware page.