2 weeks ago my phone was acting out, being super slow and laggy. I did a factory reset and boom the phone was working back to normal. Now, the same problem has occured so I thought I should just do another factory reset to fix the problem- only that did not work at all. After the factory reset the problem came back again along with a new problem, the home screen is just a black screen. I cant access the home screen, everytime I go home its just a black screen. My phone is also super slow again. I've done 4 factory resets, I left it alone for a while, took out batter and sim card, etc. Nothing has worked. The two problems are still there even after I do a factory reset. I have no freaking clue what to do and its f'ing with my brain. Is there anything I can do to fix these problems??? Factory reset doesn't do anything??