This page provides complete firmware information for iPhone 11 Pro Max with model identifier iPhone11,6. Below you will find official IPSW files, version numbers, build numbers, file sizes, and signing status.

All IPSW files listed here are original firmware packages distributed by .

Device Information

• Device Name: iPhone 11 Pro Max
• Model Identifier: iPhone11,6
• Chipset: A13 Bionic
• Release Year: 2019
• Platform: iOS
• IPSW Type: Restore Image

Latest iOS Versions for iPhone11,6

Below are recent public iOS releases available for this device.

iOS 17.3.1

• Build Number: 21D61
• Release Date: February 2026
• File Size: 5.62 GB
• SHA1: Available after download verification
• Signing Status: ✅ Signed

Download (Signed)

iOS 17.2

• Build Number: 21C62
• Release Date: December 2025
• File Size: 5.59 GB
• Signing Status: ❌ Not Signed

Download (Not Signed)

iOS 17.1.2

• Build Number: 21B101
• Release Date: November 2025
• File Size: 5.55 GB
• Signing Status: ❌ Not Signed

Download (Not Signed)

iOS 16.7.5

• Build Number: 20H307
• Release Date: Security Update
• File Size: 5.41 GB
• Signing Status: ❌ Not Signed

Download (Not Signed)

Signing Status Explanation

• ✅ Signed – Firmware can currently be restored via Finder or iTunes.
• ❌ Not Signed – Apple has stopped signing this version; restore will fail unless using saved SHSH blobs.

Signing status changes dynamically depending on Apple’s server policy.

IPSW File Details

All IPSW restore files for iPhone11,6:

• Are full firmware packages (not OTA updates)
• Include complete iOS system image
• Suitable for clean restore or upgrade
• Compatible with macOS Finder and iTunes on Windows

Each file averages between 5.4 GB – 5.7 GB depending on iOS version.

How to Identify Correct Firmware

Before downloading:

1. Confirm device model is iPhone11,6
2. Check regional variant (Global model supported)
3. Verify signing status
4. Ensure sufficient storage and stable internet connection

You can confirm your model number in:

Settings → General → About → Model Number

Important Notes

• Only install firmware designed for iPhone11,6
• Installing wrong IPSW will result in restore error
• Always verify signing status before restore
• Backup data before performing any restore process

Firmware Archive Summary

If you need IPSW files for other iPhone models such as:

• iPhone 11 (iPhone12,1)
• iPhone 11 Pro (iPhone12,3)

Let me know, and I’ll generate a complete firmware listing page in the same professional repository style.