Download watchOS 6.0 (17R5571a) OTA Update for Apple Watch Series 4 (40mm)

❌ This OTA Update firmware is not Signed

Firmware Identifier Watch4,1
watchOS Version 6.0 Normal release
Release Date 2019-08-21
Update Date 2024-11-23
Size 0.67 GB
FileName
2bc214a70357d240e001ea777493dce0f83a7851.zip
Status

Download IPSW (0.67GB) Check device info
What is an OTA Update?

An over-the-air update (OTA Update), also known as over-the-air programming, is an update to an embedded system that is delivered through a wireless network, such as Wi-Fi or a cellular network. These embedded systems include mobile phones, tablets, set-top boxes, cars and telecommunications equipment.

One of the key reasons why OTA is so important is the agility to keep devices secure. The ability for devices to receive updates without being physically plugged means that the manufacturer of the device or software that is being used can easily release updates at any frequency.

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Frequently Asked Questions

What is IPSWDL.COM?

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IPSWDL.COM is a website that provides download links for IPSW files, which are used to install or restore firmware on Apple devices. These files are sourced directly from Apple's servers.

What is an IPSW file?

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How can I use an IPSW file to restore my device?

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Where can I download IPSW files?

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What is the difference between IPSW and OTA updates?

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Can I downgrade my iOS version using an IPSW file?

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