Downgrade iPhone 4S

[AmazingHenry]

So, I'll be getting an iPhone 4S tomorrow (should be a nice upgrade over my 2G ) and it's on iOS 9. I've heard that the iPhone 4S is pretty slow on iOS 9 and fast on iOS 5 and 6. Is it possible to downgrade it? I can provide more details about the device tomorrow, sorry if I don't have enough.
Thanks!

 

[Applejuiced]

No.
you will not be downgrade iOS version.
Apple doesn't allow it.

 

[Shirasaki]

It is easier to find an iPhone 4s with iOS 5/6/7 on it than trying to downgrade from iOS 9 to any older firmware.

 

[Suckfest 9001]

Yes it is possible. When you get the 4S, hopefully it is on <=9.3.2. If it is, then jailbreak it, and use OdysseusOTA. It'll be downgraded to 6.1.3.

http://www.redmondpie.com/odysseusota-downgrade-to-ios-6.1.3-without-shsh-blobs-video/