In the sys.txt write:

[rawdisplay]
screen_xy="auto"
dpi="auto"

If it doesn't work well, change auto to dpi from your phone.

dpi=120 ------> ldpi
dpi=160 ------> mdpi
dpi=240 ------> hdpi
dpi=320 ------> xhdpi
dpi=480 ------> xxhdpi
dpi=640 ------> xxxhdpi