Download iOS 9.9.15.1 (19B74) OTA Update for iPhone 8 (GSM)

❌ This OTA Update firmware is not Signed

Firmware Identifier iPhone10,4
iOS Version 9.9.15.1 Normal release
Release Date 2021-10-25
Update Date 2021-10-15
Size 4.20 GB
FileName
244e900f3d3809e7a2cb5b83b9fd0b0e46a5c712.zip
Status

Download IPSW (4.20GB) 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.