Official Apple Firmware

Download iOS Firmware for iPhone 3GS

Signed and unsigned IPSW files for iPhone2,1. Direct downloads from Apple's CDN servers.

Product
Product
Platform
Platform
Version
Version
Download
Download

Signed IPSWs

Restore Possible
iOS 6.1.6
10B500
Feb 21, 2014
Release Date
0.77 GB
Size
iOS 4.1
8B117
Apr 15, 2026
Release Date
0.37 GB
Size

Unsigned IPSWs

Cannot Restore
iOS 6.1.3
10B329
Apr 15, 2026
Release Date
0.77 GB
Size
iOS 6.1.2
10B146
Apr 15, 2026
Release Date
0.77 GB
Size
iOS 6.1
10B141
Apr 15, 2026
Release Date
0.77 GB
Size
iOS 6.0.1
10A523
Apr 15, 2026
Release Date
0.76 GB
Size
iOS 6.0
10A403
Apr 15, 2026
Release Date
0.76 GB
Size
iOS 5.1.1
9B206
Apr 15, 2026
Release Date
0.67 GB
Size
iOS 5.1
9B176
Apr 15, 2026
Release Date
0.67 GB
Size
iOS 5.0.1
9A405
Apr 15, 2026
Release Date
0.67 GB
Size
iOS 5.0
9A334
Apr 15, 2026
Release Date
0.65 GB
Size
iOS 4.3.5
8L1
Apr 15, 2026
Release Date
0.41 GB
Size
iOS 4.3.4
8K2
Apr 15, 2026
Release Date
0.41 GB
Size
iOS 4.3.3
8J2
Apr 15, 2026
Release Date
0.41 GB
Size
iOS 4.3.2
8H7
Apr 15, 2026
Release Date
0.41 GB
Size
iOS 4.3.1
8G4
Apr 15, 2026
Release Date
0.41 GB
Size
iOS 4.3
8F190
Apr 15, 2026
Release Date
0.41 GB
Size
iOS 4.2.1
8C148a
Apr 15, 2026
Release Date
0.39 GB
Size
iOS 4.0.2
8A400
Apr 15, 2026
Release Date
0.37 GB
Size
iOS 4.0.1
8A306
Apr 15, 2026
Release Date
0.37 GB
Size
iOS 4.0
8A293
Apr 15, 2026
Release Date
0.37 GB
Size
iOS 3.1.3
7E18
Apr 15, 2026
Release Date
0.28 GB
Size
iOS 3.1.2
7D11
Apr 15, 2026
Release Date
0.30 GB
Size
iOS 3.1
7C144
Apr 15, 2026
Release Date
0.30 GB
Size
iOS 3.0.1
7A400
Apr 15, 2026
Release Date
0.29 GB
Size
iOS 3.0
7A341
Apr 15, 2026
Release Date
0.29 GB
Size

Signed OTAs

iOS 6.1.6
10B500 Prereq: null
Feb 21, 2014
Release Date
0.74 GB
Size
iOS 6.1.6
10B500 Prereq: 10B329
Feb 21, 2014
Release Date
0.01 GB
Size
iOS 6.1.6
10B500 Prereq: 10B141
Feb 21, 2014
Release Date
0.02 GB
Size
iOS 6.1.6
10B500 Prereq: 10A403
Feb 21, 2014
Release Date
0.07 GB
Size
iOS 6.1.6
10B500 Prereq: 10B146
Feb 21, 2014
Release Date
0.02 GB
Size
iOS 6.1.6
10B500 Prereq: 10A523
Feb 21, 2014
Release Date
0.07 GB
Size

Unsigned OTAs

iOS 6.1.3
10B329 Prereq: 10A523
Apr 15, 2026
Release Date
0.07 GB
Size
iOS 6.1.3
10B329 Prereq: 10B141
Apr 15, 2026
Release Date
0.02 GB
Size
iOS 6.1.3
10B329 Prereq: null
Apr 15, 2026
Release Date
0.74 GB
Size
iOS 6.1.3
10B329 Prereq: 10A403
Apr 15, 2026
Release Date
0.07 GB
Size
iOS 6.1.3
10B329 Prereq: 10B146
Apr 15, 2026
Release Date
0.02 GB
Size

iPhone 3GS

Technical Specifications

iPhone 3GS
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How to Install IPSW Firmware on iPhone or iPad

To restore your iPhone or iPad functionality you should execute these instructions. The method works effectively for users of Windows systems as well as users of Mac systems.

01

Backup Your iPhone or iPad

Before you begin, create a backup of your device using iCloud or iTunes/Finder. The IPSW process needs this step because it protects your photos and apps and essential data.

02

Download IPSW & Prepare Software

Before start you need to download the IPSW file that's right for your device model from a good website. If you are using a Windows computer you have to make sure that iTunes is already, on your computer and that it is updated. On Mac systems that are running macOS Catalina or something newer the IPSW file and everything else is handled through the Finder, not iTunes.

03

Connect Your Device to Computer

Link your iPhone or iPad to the computer via a data cable, and keep in mind maintaining a stable connection is very important. So do not use a cheap cable. They might stop the working process.

04

Turn Off Find My & Enter Recovery Mode

Go to Settings > [Your Name] > Find My > Find My iPhone/iPad and turn it off.
If your device is not responding or has issues, manually put it into Recovery Mode before starting the restore process.

05

Install IPSW & Restore Backup

Windows: Hold Shift and click “Restore iPhone”.
Mac: Hold Option and click “Restore”.
The system will verify and install the firmware. After completion, restore your backup to recover your data.