So yesterday I accidentally changed my phone's (Samsung Galaxy Note 4 SM-N910C) dpi from 640 to 140 using Nomone Resolution changer that uses root and that screwed up my whole phone because now it completely skips my lock screen background and straight to my home background but all it shows me is the background itself and a tiny error that says "System UI has stopped" and its literally the only thing there. I tried resetting my dpi using adb commands but the problem is that my laptop isn't authorized to my phone, I mean usb debugging is on (i think) but I don't think that will help because I have no access whatsoever inside of my phone and I don't have CWM recovery flashed so I have no clue what to do :'((
I saw this post that says i should try installing a custom launcher to fix the problem but like I said its no use trying to do anything because my laptop isn't authorized:(
I seriously have no clue what to do and I really don't want to reset my phone because I have a lot of important files and pictures there, any suggestions? Thanks.
Update: So i managed to flash TWRP recovery but now i don't know what to do because I don't have a back up and i dont know the file that managed to change my dpi but at least i managed to progress somehow. What do i do next?