My iPhone displayed this text "SOFTWARE UPDATE"?

Question

My iPhone just displayed this text, it's the only thing on the screen this big text, and I can't do anything else. I have no idea what triggered it. What the h**l happened to my phone?

Answer 1

the "killswitch" in it that was put in last week ago or 2

Answer 2

apple like to be strange and complicated, I think they want you to connect him to Itunes

it's should do the job

Answer 3

Your phone needs a software update to operate properly! Turn it off at night while your sleeping and it will download the software it needs.

Answer 4

Sync it with iTunes; there's a new update available. Sync your phone to iTunes and it'll update and everything will be fine.