Why does my I9 100 suddenly show that the message sent by others is not there, but I can't see the record when I enter the message, so I quit watching?

I thought Android SMS was conversational. . Try to display other SMS management software, such as go SMS Enhanced Edition.

The first reason: the storage reason.

Error in SQLite database managed by 1. 1 Android.

Android manages short messages through SQLite, and all short messages are stored in corresponding databases, and the storage path is usually mmssms.db database under dbdata/databases/com. Android. Provider. Phone/ (there may be subtle differences between different Android systems) maintains nearly 20 tables, among which short messages are stored in the short message table. So if the database is wrong or deleted (the mobile phone can't read and delete the database without root permission), all the short messages will be lost.

1.2 storage media failure.

Android phone storage (flash memory) is the default physical storage medium for SMS. If the phone fails to store, the message may be lost. Similarly, if the SMS is set to be stored on the SD card, if the SD card fails, the SMS may be lost.

The second reason: the application reason.

2. 1 Error in the application with permission to operate SMS.

Android has many applications for operating short messages, such as Go short messages and super short messages, which can assist users to operate short messages, so they also have the right to delete short messages stored on the storage medium of mobile phones. If these softwares perform the operation of deleting short messages unpredictably (not performed by users), short messages may also be lost.

The third reason is the stability of the Android system itself.

Tens of thousands of search results show that Android phones are unstable, such as the loss of text messages after accidental restart. This is all because of the stability of the Android system itself. Users can backup SMS and data regularly by upgrading the latest version of Android to avoid data loss caused by system instability.

The fourth reason: configuration and operation reasons.

4. 1 SMS deletion settings

Android phones can set short messages. When a conversation (short message exchange between the sender and the receiver is called a conversation) exceeds the set threshold, the system will delete the short message that has been kept for the longest time in the conversation to ensure that it does not exceed the threshold. After testing, this deletion is not batch, but one by one. If the user sends the 20th 1 message when the number of messages in the conversation reaches the threshold of 200, Android will automatically delete the 20th1message in the conversation. The specific operation method is: Information-> Settings-> Storage settings-> Set delete old SMS, SMS limit and MMS limit.

4.2 Restore factory settings

Users using the factory setting function of Android phones may also cause the loss of data such as short messages and applications. The specific operation method is: application->; Settings-> Privacy->; Restore exit settings.

4.3 Misoperation

Android supports mass deletion of short messages. If users make mistakes, they may accidentally delete all short messages. The specific operation method is: Information-> Settings-> Delete the session.

If you can't find the reason, it is recommended to brush other Roms directly.