iPhone XS Max (iPhone11,6) - Front view

iPhone XS Max

iPhone11,6

The iPhone XS Max was introduced in 2018, shipped in 64 GB, 256 GB and 512 GB configurations, was offered in Silver, space gray and gold.

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

Firmware Details
Identifier
iPhone11,6
Model Number
A1921, A2101, A2102, A2104
BuildID
22H374
Release Date
August 17, 2026
Filesize
8.24 GB
Filename
iPhone11,2,iPhone11,4,iPhone11,6_18.7.10_22H374_Restore.ipsw
SHA256
32d658948766d1de8f24e0cd63bf4fc2c1246d3b99d819db5d200b7f38eae7df
SHA1
24bcca0b12090fcd51fdb568a564b6f92223e812
MD5
473abd5db01b1f005ba361e15e403b0c
Download URL
Verify your device

This page covers everything Apple has published for the iPhone XS Max (device identifier iPhone11,6).

Apple sells that device under several model numbers — A1921, A2101, A2102 and A2104 — 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: A1921 or A2101 or A2102 or A2104
  • Or verify that Model Name is: iPhone XS Max

Make sure you select the correct model to avoid installation errors

Support history

Apple's firmware list for the iPhone XS Max starts with iOS 12.0 (Sep 18, 2018) and currently ends with iOS 18.7.10 (Aug 18, 2026).

That is 119 releases in total, spanning 7 years 10 months between the first and the most recent build.

iOS 18.7.10 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 7 major iOS versions: iOS 12 (13 releases) , iOS 13 (17 releases) , iOS 14 (14 releases) , iOS 15 (13 releases) , iOS 16 (15 releases) , iOS 17 (20 releases) and iOS 18 (27 releases) .

Check downgrade status for the iPhone XS Max →

Related devices

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