If there is a white screen on the phone, what is the problem?

White screen is generally caused by the problem of short message MCE, memory damage, system error, media being closed, game being installed or deleted, game running (CS, DOOM) and other reasons. Here is a detailed introduction to the solution to the problem caused by SMS! For example, when sending and receiving short messages normally, the database is suddenly prompted to make an error, and then the system makes an error. It will automatically turn off after repeated several times, stay on the Nokia screen for a long time after being turned on again, then the top of the screen will flash, the white screen will restart, and then the Nokia screen will appear again. After a few repetitions, it will be turned off. Solution steps: first unplug the card and turn it on, and check that the C:\ system \ index. dat file in the mail directory is the index of all short messages. If it is destroyed, it will cause the short message to be read abnormally, and then it cannot be started. If the keyboard can be accessed by charging (method 3), then you will find that the short message function is not displayed and the short message menu in the menu disappears. Then all we have to do is move this directory to drive e. That is, in the MMC card, it can be solved by MsgDriveE (that is, moving the short message to E disk). It doesn't matter if Index.dat is damaged. Unplug the MMC card and turn it on, because the E drive is gone, and the system will automatically define it in the Nokia \ mail of the C drive. We just need to connect the MMC card to the card reader, delete /nokia\mail and reinstall MsgDriveE. Simply put, the database error only occurs in disk E, and this error can be solved by unplugging the mmc card. First, press and hold the pen key to start the machine. After the Nokia logo appears, press the check key (Enter key). Second, if it fails, try the following operation again: 1. Take out your MMC card. 2. Load it into the card reader. 3. Enter the computer. Read data. 4. Delete the recently installed file in the mmc card (if it is an installed SIS file, you can decompress the installed source file with the SIS viewer, and then delete it by comparison). 3. If the second method still can't turn on the white screen, then continue to use the "power-off charging method": you can "force the power-on to make the button effective" when you turn off the power-on (this is crucial, and the power-on is completely ineffective when the screen is white) 1. When charging, you will be prompted with an error and ask for confirmation. At this time, it will not be able to charge normally. As long as it is confirmed as required, the system will prompt the error many times, and then confirm the error many times until it can be charged normally. 2. Take out the battery and sim card, and leave it for a while before installing the battery. When charging, restart it continuously with "pen+power key" before all errors are displayed, until the sign of "NOKIA" appears on the screen. After success, you can enter the safe mode (the system will not enter the safe mode after normal operation). 3. If it still can't be started, hold down the pen key, press the power key at the same time, and then press the OK key quickly and continuously. After success, you can enter the menu interface of the mobile phone. 4.5. Take out the sim card, connect the battery, do not connect the charging connector, and then turn it on. When you see the cute (and hateful) Nokia, plug in the charging connector immediately, enter the forced mode, and press the power button to turn it on. 6. If the last step is successful, you can see a lovely desktop and prompt to insert a sim card. It tells you to insert it. How can you not plug it in? Just insert it. If it doesn't work, turn it off and restart, and you will see a color screen prompt. 4. If the above methods have no effect, the following methods can only be adopted, but usually the black screen problem caused by any software problem can be solved. First of all, you should have a card reader and a computer. After taking out the card, start the machine, and then insert the card back into the phone. If the card name is set, please delete it, delete everything under C:/system/program, and keep the folders of app, data, fonts and RECOGS in E:/system/. If you delete the others, turn it on and see if it can start smoothly. If you don't change the card name, delete everything under C:/system/program, keep the folders of APPS, DATA, FONTS and RECOGS in E:/system/, and delete others before restarting. If you still can't get in, follow the following methods. 1. After taking out the card, cut all the contents on the card to the computer through the card reader to create a temporary folder. Then put the card back on your phone and start the machine to see if it can start. If it still can't be started, please insert the card after booting, copy the folder C:/SYSTEM/DATA and APPS (including all files of your mobile phone and programs) to your card, and then cut and paste it into your computer for later use. Then please format the phone thoroughly: *#7370# (if you can't format it completely, please download the font deletion tool, which is usually caused by fonts), and the initial password is 12345. 2. After the machine is turned on or formatted, put the card back into the card slot and format the card again through the mobile phone. This process takes about 20 minutes (5 12M RS-MMC takes about 20 minutes). In this long process, you can modify the files cut from the card and mobile phone in the computer. Keep the folders of app, data, fonts and RECOGS in E:/System/ first, and delete the others. The MIDP file is a file for saving the programs in the treasure chest. You can cut it into the root directory and reinstall it later, because all the JAR programs used are stored in it, and you can choose to install it directly through SELEQ. If there are no grid friends, you have to delete everything under C:/system/program. Yes. APP and. The DAT file in c:/system/data/file copied from the mobile phone is kept, and the others are deleted. After the phone starts, copy them back to the phone. 4. After formatting the card, it is best not to change the name of the card, just set it to none. If you really want to use your own personalized card name, it is not recommended to use Chinese. Cut all the files on the computer back to the card and start the machine. If you don't have a friend who checks the computer, but you are still stuck on the Nokia screen when you turn it on, please check the computer once and follow the above steps to solve it. Generally, you don't need to format the contents of the card. 6, through this operation, you can generally solve the problem of fake white screen. I suggest you back up your app and business card to C regularly, just in case! 7. Reminder: It is best not to change the card name. Set to no conflict caused by the name (volume label) of the card read by both the mobile phone and the computer.