iPhone 4 laggy/patchy after 5.1 update.

[jon.blake]

Hey guys,

Every since updating my iphone to 5.1 its been quite laggy/patchy. I will be browsing the internet, it lags if i type, scroll up/down, if i switch to another app, open messages, etc.

It was functioning perfectly fine before the update, any ideas?

 

[TL24]

Restore as new is your best bet, I upgraded to 5.1 and my 4S actually feels a lot faster not that it wasn't before the update.

 

[Kyotoma]

Something probably got corrupted during the update process. Restore and set up as new and it should work just fine.