Door won't unlock/open

[fixkick]

the latch is in plain view door skins, cards off, and plastic water barrier off.
that is like step1.
then a flashlight,
find which lever is stick , by looking,at the photos above, find the lever that is jammmed
first is the lock lever, (that goes to the key tumbler.)
it must be free to unlock or it wont, once that is free, then you open the LATCH.
it too must be free, or it will not unlatch the door, and open
all this takes is hands and a flashlight for the diagnosis part, and pen oil attacks of same parts, if jammed.
use a flash light and get close, to the latch, and check it for stuck parts