iOS 5 through iOS 9 speed test on iPhone 4s confirms iOS gets slower every year on older devices
How to Downgrade iPhone 4s, iPad 2 From iOS 9.3.5 to iOS 6.1.3 and iOS 8.4.1? - 3uTools
fluff] 64gb iPhone 4s updated from slow iOS version (7 I think) to faster one given by friend : r/LegacyJailbreak
discussion] hello. i downgraded my iphone 4s to ios 9 to ios 6. works youtube, facebook. but the messenger doesn't work, it's hard to fix. I also installed other tweaks, but the
Should I upgrade my iPhone 4s to iOS 9.3? | The iPhone FAQ
I did it! iPhone X theme on iPhone 4S running 9.3.5!!! Tutorial coming soon... [release] : r/LegacyJailbreak