I have a K790a, and it started crashing on me about a month ago, and eventually wouldn't turn on at all. I took it apart, cleaned it, and it fired up properly after a few tries. Same thing happened a couple days later, cleaned it, and it worked for a couple days, until it died again. Then It won't turn on at all. I got a couple questions...

1: Is it possible to determine what's causing it not to boot, and replace it?
2: Is there anyway I could transfer the internal memory from this board, to another K790a, if I bought another one. (I have some sentimental stuff on the phone.)