Nokia 5800 can't be opened, which means that the mobile phone has pneumatic failure. Please contact the mobile phone retailer. . . If you want to brush the computer, brush it if you don't understand i

Nokia 5800 can't be opened, which means that the mobile phone has pneumatic failure. Please contact the mobile phone retailer. . . If you want to brush the computer, brush it if you don't understand it. Then you try to pull out the memory card and open it. If not, it is not a software problem. Then you can try changing the battery. There may be something wrong with the battery ic module. This problem also happened to my c6. Later, just touch the concave contact in the middle of the battery with a needle. If it doesn't work, format it hard. . . . .