There are several possible reasons why the xs screen has a slash:
1. The cable is broken, that is, the cable connecting the screen and the motherboard is burned or dropped loose, this change the cable is good.
2. The screen is broken, and the LCD screen is broken, this is no way, the most troublesome, to change the entire screen assembly, the cost is high.
3. The motherboard is broken, but also for the whole motherboard, but this probability is relatively small, but it does not rule out, the method is to change the motherboard, the general motherboard is cheaper than the screen.