(Sorry if this has been reported before, I did search a bit before posting.)
I started answering an SMS directly from the notification on the lock screen, everything went fine until I wanted to send it.
Then I arrived at the “Enter security code” screen (as expected), but the keypad did not work.
The keys were displayed and I could switch between numpad and full keyboard, but nothing happened when I pressed the keys.
This meant I was unable to unlock the phone for a few minutes.
My own guess is that the keypad was still locked by the notification function. And then timed out after a while.
Has anyone seen this before? I’ll create a bug report if I’m able to repeat it.
xperia-10-II, 5.0.0.55