Hi. So couple nights ago i dropped my phone and cracked my screen but my phone was working throughout that night anyways after that my battery died eventually and the phone shut off. After that i plugged my phone to charge the charging symbol appeared but it stucked on that screen , anyways i waited for like 2 hours then returned but it was still on that screen , so i unplugged the phone take the battery off , and take it on and tried to open it one more time so the samsung galaxy s3 screen appeared but it didnt go further than that ,later that day i took my phone to service , the person at the service told me that i have some kind of rom problem so if he fixes that i can be able to use my phone without changing the screen but he did try to charge me too much and the problem wasnt under warranty cause of my fault. So anyways i was wondering if anybody can help me step by step? what should i do to fix it? Also i'm using a macbook and currently it doesn't read my sd card also kies won't recognize the phone.