iPhone 6(S)/Plus How to speed up a slow iPhone

[firewood]

Gruber, over at Daring Fireball, recommends a complete backup and restore of a slow iPhone.

https://daringfireball.net/
http://mglenn.com/blog/2017/12/22/apples-bungled-battery-feature

I did that with an old iPhone 6s and see no signs of any CPU speed slow down. It's currently running iOS 11.2.1.

 

[Hal~9000]

Just cause some guy on a random blog said he restored and the throttling issues are gone doesn’t mean it magically will stay that way...

I’d tell him: “You just wiped your phone completely, no duh it might take a few days for the phone to start throttling itself again.”

 

[jmarttu24]

Bought a new battery for $25 and replaced it myself. iPhone 6 is extremely fast again. Running the latest iOS

 

[hipsheik]

There's going to be quite an uptick in battery replacements moving forward . .

I did it for my 6S a couple of months ago before all of this news broke out and it was like getting a new phone.

 

[firewood]

Just cause some guy on a random blog said he restored and the throttling issues are gone doesn’t mean it magically will stay that way...

I’d tell him: “You just wiped your phone completely, no duh it might take a few days for the phone to start throttling itself again.”

And why might an iPhone that runs fast start to run slower a few days later with no OS or setting changes?
[doublepost=1514058788][/doublepost]Has anyone actually tried this to see if it speeds up a slow iPhone? (full backup and restore)