Download iOS 11.0.3 (15A432) OTA Update for iPhone 5s (GSM)

❌ This OTA Update firmware is not Signed

Firmware Identifier iPhone6,1
iOS Version 11.0.3 Normal release
Release Date 2017-10-11
Update Date 2024-06-03
Size 1.05 GB
FileName
5b7eeaaf9fe223eb6ab8caf6fbea67143b83f79a.zip
Status

Download IPSW (1.05GB) 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.