iOS 13.3.1 (22E261)

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

Download iOS 13.3.1

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 13.3.1

Build ID

22E261

Release Date

April 7, 2023

File Size

11.85 GB

File Name

MD5 Sum

238108a4bf8e47b387af0d784680c370

SHA1 Sum

e8e862f31c6390f5d66c37139dc84493639e14d0

About this Device

Identifier

MacBookPro18,1

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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.