Download watchOS 5.3.6 (16U662) OTA Update for Apple Watch Series 4 (40mm)

❌ This OTA Update firmware is not Signed

Firmware Identifier Watch4,1
watchOS Version 5.3.6 Normal release
Release Date 2020-03-24
Update Date 2020-03-19
Size 0.05 GB
FileName
25c8d8ec59a81e3abf5631b1ec24cca5b8bcc6d9.zip
Status

Download IPSW (0.05GB) 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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