Yes, IPSW files are safe to use as long as they are downloaded from trusted sources like iosfixkit.com.

What is an IPSW file?

An IPSW file is a firmware update file used by Apple devices, including iPhones, iPads, and iPods, for restoring or updating their operating system.

How do I install an IPSW file?

You can install an IPSW file using iTunes or Finder (on macOS Catalina and later). Download the correct IPSW file, connect your device, and use the 'Restore' option while holding Shift (Windows) or Option (Mac) to select the IPSW file.

Can I downgrade my iPhone using IPSW?

You can downgrade your iPhone using an IPSW file only if Apple is still signing the previous iOS version. Unsigned IPSWs cannot be restored via iTunes.

How do I check if an IPSW file is signed?

You can check the signing status of an IPSW file using iosfixkit.com, where we provide real-time updates on which versions are currently signed by Apple.

Can I use IPSW to jailbreak my device?

Some jailbreak tools require specific IPSW files, but installing an IPSW alone does not jailbreak a device. You need additional tools such as checkra1n or unc0ver.

Official Apple Firmware

Download iOS Firmware for Apple Watch Series 5 (40mm, LTE)

Signed and unsigned IPSW files for Watch5,3. Direct downloads from Apple's CDN servers.

Product

Platform

Version

Download

OTA Updates
Specs

Signed OTAs

watchOS 6.3.1

17U224 Prereq: 17U216

Feb 2, 2026

Release Date

0.16 GB

Size

watchOS 6.3.1

17U224 Prereq: 17U63

Feb 2, 2026

Release Date

0.18 GB

Size

watchOS 6.3.1

17U224 Prereq: 17T620

Feb 2, 2026

Release Date

0.26 GB

Size

watchOS 6.3.1

17U224 Prereq:

Feb 2, 2026

Release Date

1.44 GB

Size

watchOS 6.3.1

17U224 Prereq: 17S84

Feb 2, 2026

Release Date

0.54 GB

Size

watchOS 6.3.1

17U224 Prereq: 17S811

Feb 2, 2026

Release Date

0.53 GB

Size

watchOS 6.3.1

17U224 Prereq: 17T530

Feb 2, 2026

Release Date

0.31 GB

Size

watchOS 6.3.1

17U224 Prereq: 17R604

Feb 2, 2026

Release Date

0.66 GB

Size

watchOS 6.3.1

17U224 Prereq: 17S449

Feb 2, 2026

Release Date

0.53 GB

Size

Unsigned OTAs

watchOS 6.3

17U216 Prereq:

Jan 26, 2021

Release Date

1.44 GB

Size

watchOS 6.3

17U216 Prereq: 17U63

Jan 26, 2021

Release Date

0.07 GB

Size

watchOS 6.3

17U216 Prereq: 17T620

Jan 26, 2021

Release Date

0.13 GB

Size

watchOS 6.3

17U216 Prereq: 17T608

Jan 26, 2021

Release Date

0.13 GB

Size

watchOS 6.3

17U216 Prereq: 17T530

Jan 26, 2021

Release Date

0.18 GB

Size

watchOS 6.3

17U216 Prereq: 17T529

Jan 26, 2021

Release Date

0.18 GB

Size

watchOS 6.3

17U216 Prereq: 17S811

Jan 26, 2021

Release Date

0.44 GB

Size

watchOS 6.3

17U216 Prereq: 17S796

Jan 26, 2021

Release Date

0.44 GB

Size

watchOS 6.3

17U216 Prereq: 17S84

Jan 26, 2021

Release Date

0.45 GB

Size

watchOS 6.3

17U216 Prereq: 17R604

Jan 26, 2021

Release Date

0.57 GB

Size

watchOS 6.3

17U216 Prereq: 17R575

Jan 26, 2021

Release Date

0.57 GB

Size

watchOS 6.3

17U216 Prereq: 17S449

Jan 26, 2021

Release Date

0.44 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17S5083a

Nov 5, 2019

Release Date

0.18 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17S5076a

Nov 5, 2019

Release Date

0.18 GB

Size

watchOS 6.1.1

17S5433b Prereq:

Nov 5, 2019

Release Date

1.43 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17S5059e

Nov 5, 2019

Release Date

0.30 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17S5068e

Nov 5, 2019

Release Date

0.18 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17R575

Nov 5, 2019

Release Date

0.38 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17R604

Nov 5, 2019

Release Date

0.38 GB

Size

watchOS 6.1.1

17S5433b Prereq: 17S5054e

Nov 5, 2019

Release Date

0.31 GB

Size

watchOS 6.1

17S5083a Prereq:

Oct 23, 2019

Release Date

1.42 GB

Size

watchOS 6.1

17S5083a Prereq: 17S5076a

Oct 23, 2019

Release Date

0.06 GB

Size

watchOS 6.1

17S5083a Prereq: 17R604

Oct 23, 2019

Release Date

0.35 GB

Size

watchOS 6.1

17S5083a Prereq: 17S5059e

Oct 23, 2019

Release Date

0.27 GB

Size

watchOS 6.1

17S5083a Prereq: 17S5054e

Oct 23, 2019

Release Date

0.28 GB

Size

watchOS 6.1

17S5083a Prereq: 17S5068e

Oct 23, 2019

Release Date

0.10 GB

Size

watchOS 6.1

17S5083a Prereq: 17R575

Oct 23, 2019

Release Date

0.35 GB

Size

watchOS 6.1

17S5076a Prereq: 17S5059e

Oct 16, 2019

Release Date

0.27 GB

Size

watchOS 6.1

17S5076a Prereq:

Oct 16, 2019

Release Date

1.42 GB

Size

watchOS 6.1

17S5076a Prereq: 17S5068e

Oct 16, 2019

Release Date

0.10 GB

Size

watchOS 6.1

17S5076a Prereq: 17R604

Oct 16, 2019

Release Date

0.35 GB

Size

watchOS 6.1

17S5076a Prereq: 17S5054e

Oct 16, 2019

Release Date

0.28 GB

Size

watchOS 6.1

17S5076a Prereq: 17R575

Oct 16, 2019

Release Date

0.35 GB

Size

watchOS 6.1

17S5068e Prereq:

Oct 10, 2019

Release Date

1.42 GB

Size

watchOS 6.1

17S5068e Prereq: 17S5054e

Oct 10, 2019

Release Date

0.28 GB

Size

watchOS 6.1

17S5068e Prereq: 17S5059e

Oct 10, 2019

Release Date

0.27 GB

Size

watchOS 6.1

17S5068e Prereq: 17R575

Oct 10, 2019

Release Date

0.35 GB

Size

watchOS 6.1

17S5068e Prereq: 17R604

Oct 10, 2019

Release Date

0.35 GB

Size

watchOS 6.1

17S5059e Prereq:

Oct 2, 2019

Release Date

1.40 GB

Size

watchOS 6.1

17S5059e Prereq: 17S5054e

Oct 2, 2019

Release Date

0.14 GB

Size

watchOS 6.1

17S5059e Prereq: 17R604

Oct 2, 2019

Release Date

0.25 GB

Size

watchOS 6.1

17S5059e Prereq: 17R575

Oct 2, 2019

Release Date

0.25 GB

Size

watchOS 6.0.1

17R604 Prereq: 17R575

Sep 30, 2019

Release Date

0.09 GB

Size

watchOS 6.0.1

17R604 Prereq:

Sep 30, 2019

Release Date

1.41 GB

Size

watchOS 6.1

17S5054e Prereq:

Sep 23, 2019

Release Date

1.40 GB

Size

watchOS 6.1

17S5054e Prereq: 17R575

Sep 23, 2019

Release Date

0.25 GB

Size

watchOS 6.0

17R575 Prereq:

Sep 11, 2019

Release Date

1.41 GB

Size

Apple Watch Series 5 (40mm, LTE)

Technical Specifications

Model Identifier

Apple Watch Series 5 (40mm, LTE)

Board Configuration

N146sAP

Platform

Chip ID (CPID)

32774

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Download iOS Firmware for Apple Watch Series 5 (40mm, LTE)

Signed OTAs

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

watchOS 6.3.1

Unsigned OTAs

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.3

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.1

watchOS 6.0.1

watchOS 6.0.1

watchOS 6.1

watchOS 6.1

watchOS 6.0

Apple Watch Series 5 (40mm, LTE)

How to Install

Backup Your Data

Connect Device

Turn Off Find My

Install .ipsw File

Restore Backup