iOS 26.3.1 (23D8133)

IPSW Firmware Currently Signed
Product
Device
Version
4
Download
Official IPSW Download

Download iOS 26.3.1

Download OTA Update

This firmware is provided as a direct link to Apple's official servers. No mirroring or modification is performed.

Firmware Information

Version

iOS 26.3.1

Build ID

23D8133

Release Date

March 4, 2026

File Size

9.50 GB

File Name

MD5 Sum

1d488d4ff30114c6f368e9b9cb0277fe

SHA1 Sum

9b5bd8d7d5cd07fd96d7b61043568757bdf4959a

About this Device

Identifier

iPhone15,3

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Need help?

Our community guide has everything you need to know about restoring firmwares.

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How to Install?

Follow these critical steps to ensure a successful firmware installation.

1

Secure Your Data

Always start by creating a full backup of your device via iCloud or a computer to ensure your personal files are safe.

2

Establish Connection

Use a high-quality MFi-certified cable to connect your device to your Mac or PC.

3

Verify Security

Temporarily disable Find My in your iCloud settings to allow the restoration process to proceed.

4

Initiate Restore

Hold Option (Mac) or Shift (PC) while clicking Restore in Finder/iTunes, then select your downloaded IPSW.

5

Finalize Setup

Once the installation completes, follow the on-screen prompts to restore your data from your backup.