Pulling on the ear didn't do anything, so I removed the whole screw at this step. The screw stayed fixed on the fan and I didn't have to remove it at the step where you remove the logic board screws.
Probably I didn't want to use too much force .. but it worked
Didn't have that special tool. Used iPhone repairset screwdriver. Worked fine with sticking it in to the holes verticaly and then push it towards me a bit, then changing holes and repeating that step.