Apple iPhone 4S - Software version - AT&T
User's video: How To Flash And Restore iPhone 4s Firmware Step By Step Using 3uTools - YouTube
Apple Unveils iPhone 4s and Disappoints
How to Update your Apple iPhone 4 / iPhone 4S from iOS 5 over WiFi (over the air) - YouTube
iPhone 4s - iFixit
IPhone 4S Gets More Power, a Better Camera and Siri - The New York Times
Apple outs iOS 8.1.1; Makes your iPhone 4S and iPad 2 perform faster » YugaTech | Philippines Tech News & Reviews
iPhone 4S iOS 9.3.4 Performance - Final Update - YouTube
Surprise, Apple Just Updated iOS 9 and iOS 10 on Older Devices (Here's Why)
Apple agrees to pay iPhone 4S owners $15 for sluggish performance after iOS 9 update - NotebookCheck.net News
![Goodbye, A5: iOS 10 ends support for iPhone 4S, iPad 2, and more [Updated] | Ars Technica](https://cdn.arstechnica.net/wp-content/uploads/2016/06/IMG_0052.jpg "Goodbye, A5: iOS 10 ends support for iPhone 4S, iPad 2, and more [Updated] | Ars Technica")
Goodbye, A5: iOS 10 ends support for iPhone 4S, iPad 2, and more [Updated] | Ars Technica
iOS 10 Beta 4 Download Now Available For iPhone, iPad, iPod touch | Redmond Pie
Apple iPhone 4S (photos) - CNET
Extend battery life - Apple iPhone 4S - iOS 6 - Device Guides
How much does iOS 8.1.1 improve your iPhone 4s?
Apple iPhone 4S - Software version - AT&T
All Differences Between the iPhone 4 and iPhone 4S: EveryiPhone.com
Is there any way to update iPhone 4s to iOS 10? - Quora
Update software - Apple iPhone 4S - iOS 8 - Device Guides
iPhone 4s - Wikipedia
Apple iPhone 4S - Update phone software | Vodafone Ireland
5 things to know on Wednesday
![Downgrading my iPhone 4s to iOS 8 [fluff] : r/LegacyJailbreak](https://i.redd.it/2cvu0lxmn2fa1.jpg "Downgrading my iPhone 4s to iOS 8 [fluff] : r/LegacyJailbreak")
Downgrading my iPhone 4s to iOS 8 [fluff] : r/LegacyJailbreak
iOS 10.3.4 & iOS 9.3.6 Updates for Older iPhone & iPad Models | OSXDaily
![Download iOS 5.1.1 For iPhone 4S, 4, 3GS, iPad And iPod touch [Direct Links] | Redmond Pie](https://cdn.redmondpie.com/wp-content/uploads/2012/05/iOS-5.1.1-changelog.png "Download iOS 5.1.1 For iPhone 4S, 4, 3GS, iPad And iPod touch [Direct Links] | Redmond Pie")
Download iOS 5.1.1 For iPhone 4S, 4, 3GS, iPad And iPod touch [Direct Links] | Redmond Pie
Review: Apple iPhone 4S | WIRED
