Hello! I'm not sure how to start a new question, so will just reply to a main one. I am SO happy to have found this thread, as it sounds like you have helped so many people with numerous issues before deciding if a factory reset is actually needed or not. Hope you can help me too! So I was using my phone like normal yesterday. Then midday, completely out of the blue, the screen was black. Seemed the phone was still on though, and I know it hadn't just died from charge as it had been 60% last I looked. I have seen inexplainable stuff or black screen at least a couple times in my general phone experience, so I did the usual restart phone and then also remove/reinsert battery techniques. But neither helped. Interesting observations that may help: 1)I can hear the phone "responding" to me, i.e. when I push the side button to restart I can hear and feel the usual noises and quick buzz it does for that task, and seems to happen, I just can't see anything because screen is black; 2) the blue notification button still flashes! 3) The back button and the other button on the left (settings? looks like a rectangle with 2 horizontal lines in it) actually light up in white when I click the side buttons of the phone or push the middle hard home button; 4) The phone lets me charge it (I know this because it made the little noise it always makes when I plugged the charger in and then when it was done, the green notification light (non flashing) was showing.
FYI, I DID drop my phone about a month ago and it's got several tiny scratches and cracks in the top and corners; and now a month later, even some actual chucks (but very tiny) have come off in the top corners. Truly, these had not messed with the operations before, but just in case it's relevant.
I was going to go to VZ today and also try to figure stuff out, but when I saw this thread, I thought I would post here too.
Thanks so much if you can advise whether a FR will help or I just need to buy a new screen (expensive and not desired, but cheaper than buying a new phone!), or going to VZ to see if the techs in person can help (hopefully easily and for free/cheap!).