My 73 replied after receiving the text message, and the text message was automatically deleted. What happened? Who can help me?

Maybe someone else sent you an unsavable flash message. If every message is true, it is that there is something wrong with the mobile phone. Try the lattice machine. Perfect grid tutorial (under what circumstances, how to back up, restore, pay attention)! First of all, unlike the computer operation steps, the mobile phone will automatically generate the operating system when it is formatted, and there is no need to interfere with the installation. Generating an operating system is to extract the operating system that is solidified on the mobile phone and can only be upgraded by brushing. That is to say, the version after the grid machine is the version of the system you are currently using. If you go to customer service to upgrade, then the back grid machine is also your upgraded version. If the system is often unstable, it is recommended to check the version first to see if it needs to be upgraded! Quote: Cell phone may need a cell phone in one of the following situations: 1. You can't delete anything under any circumstances! 2. Inexplicable mistakes often happen for no reason; 3. The speed of running software or opening files is obviously not as fast as when buying; 4. Press the function key for 2 seconds to exit other programs, but when playing the game, it still prompts that the memory is insufficient; 5. Always try to install, test and uninstall software or games; 6. Frequent crashes, black screen, or automatic restart; 7. I want to have a pure brand-new operating system. 8. I can't start several grid methods and results when the battery is in good condition. I 1。 Enter * # 7780 #- standby soft power grid. Only the factory settings of the system are restored without deleting files, and the effect is not obvious. 2. Input * # 7370 #- soft unit and hard unit in standby mode. Restoring the system to factory settings will delete the personal data of drive C, but line 2 cannot be retained and will be restored to its original state. Sometimes the C disk file is not deleted by the grid machine after the grid machine, and the system is unstable. 3.3+ 1 key hard grid-hard grid. Restoring the system to the factory settings will delete the personal data of disk C, and line 2 can be kept. It has the same effect as brushing machine. Recommended use. Hard grid operation method: You need two hands, one hand holds down the *, 3, and green call keys, and the other hand only holds the power-on key. You can't let go of the handshake screen until formatting appears on the screen. After about two minutes, the phone will automatically turn on. (the format ... will not appear in 668 1/6680/6630/n70/n72, and it can only be released at the set time) bA, nU! [,A%Z7b'y Precautions before lattice machine: Do a good job of personal data backup. Of course, the main thing is to back up important business cards and text messages. Others, such as some C game files, photos, videos, recordings, etc. , or you can back it up yourself (generally, these things are stored on MMC cards and do not need to be backed up).