iPhone 4s stuck on diagnostics screen after update, what can I do?

[iMore Question]

iphone 4s stuck on diagnostics screen after update pls help

i updated my iphone 4s and now its stuck on diagnostics screen.wont let me do anything apart from enter wifi code. pls hep

 

[Rob Phillips]

Re: iphone 4s stuck on diagnostics screen after update pls help

Welcome to iMore! Reset your device by holding the power button and home button down simultaneously until you see the Apple boot logo. Your iPhone should boot normally at that point.