If you have installed the new Android Lollipop on your Samsung Galaxy S5, then you will see a button with a red handset displayed on the lock screen in the bottom left corner. If you pull it up it will open a keypad and some “plus symbols”.
This is the so-called emergency mode of the Samsung Galaxy S5. You can assign the plus symbols with contacts from your address book. These contacts can then be called even if the Samsung Galaxy S5 is secured with a pin or another security method.
To add contacts to the emergency contacts you must assign them first as "ICE emergency contacts". How this works on the Samsung Galaxy S5 with Android Lollipop we would like to explain to you in more detail here:
Simply open on the Samsung Galaxy S5 the menu and then the contacts app. Look for contact, you want to select as an emergency contact. Tap on it and you will be shown the contact information. Tap at the top right corner this on the pencil icon to edit the contact. You can now edit the fields. Tap on "Groups". Now you can assign the contact to the "ICE emergency contacts".
After that, save the contact. Now return back to the lock screen and pull the red listener in the bottom left of the screen. You will see the four plus symbols. Tap on an icon and you will now see all the contacts you have assigned to the group "ICE emergency contacts". Tap a contact to add him to the emergency widget of the lock screen.
You now know how to edit on the Samsung Galaxy S5 the emergency contacts at the lock screen in Android lollipop.