Can any body help? i use iphone 5, the power button does not work, what shall i do to decline the call when the screen was locked? are any software? or some combinations?
on your iPhone, go to: settings > general > accessibility > assistive touch turn it on, it will then put a touchable dot overlay on your screen (even at the lock screen) which will open a popup, allowing you to select "lock screen".
there is a reminder dot on locked screen, it has two options 1. in an hour; 2. when I leave, choice anyone, incoming call will be declined.