Hi, I accidentally set a screen density at 240, while my phone's original value was 160, so now I can't unlock my lock screen, since the screen is too large. I tried to boot into factory recovery mode to do a hard reset and everything went back to original expected for the screen. Then the problem now becomes more complicated, I can't check both USB Debug and Install From Unknown Resources and I also lost SU access. The phone that I am using is China phone, running CPU MTK6516. Does anybody have any idea how to fix it ?