LCD Problem will be possible overcome with attention of the following:
If LCD is flame
LCD problem caused by exposed to collision of fall. But the condition phones is normal, phones still can receives call. Usually socket / connector of lcd is not plugged into the machine properly or loose. The solution by unloading casing and lcd properly attach the socket, if you still want to try to replace the lcd to normaly, if you do not have any friends to borrow a lcd, then plug your lcd on normal phone's friend. Well if your phone still flame and lcd of phone's friend is well, It can be sure that your phone cpu have problem, well ... Just take it to a technician.