Hi, i have dropped my sony experia m4 aqua, the screen has gone off but the touchscreen still works, can anyone advise the best thing to do
That sucks. What happened? Well, you need to replace the LCD. You should have it check first if there's no need to replace the digitizer (It's the glass on top of the LCD). Best visit local service centers or contact Sony to get a quotation for the cost of repair. Good luck!