Vertical and vertical colored lines are a form of screen distortion. This can only be determined by checking the mobile phone to determine whether the screen is broken or the cable is broken. It cannot be seen with the naked eye. It's also possible that the motherboard is broken.
1. The cable is broken, that is, the cable connecting the screen and the motherboard is burned or loose. Just replace the cable.
2. The screen is broken, and the LCD screen is broken. There is no other way, and the most troublesome thing is that it is very expensive to replace the entire screen assembly.
3. If the motherboard is broken, you can also replace the entire motherboard, but the probability is relatively small, but it is not ruled out. The method is to replace the motherboard. Generally, the motherboard is cheaper than the screen.
Users can take their mobile phone to after-sales service for repair, and do not look for non-brand repairers.