What should I do if the unread information icon of a Samsung mobile phone (Android 4.1.2) cannot be deleted?

1. Try to open the unread text message

: When the "unread information icon cannot be deleted" problem occurs, first try to open the unread text message.

1. On the "standby" page, click "information ].

2. Click the "1" dialog box on the right.

3. After reading the text message, return to the phone standby page. The unread text message icon disappears.

 

2. Delete inbox information

: When there is too much information in the inbox or the information is full, it may be unable to read new information. We recommend that you delete useless information and try again.

1. On the "standby" page, click "information ].

2. Click menu in the lower left corner and click delete session ].

3. Select the short message you want to delete and click delete ]. (To delete all information, select all and click delete ].)

 

4. Click OK.

3. Re-plugging SIM card

: To retrieve the SIM card from the mobile phone, open the rear shell of the mobile phone and place the SIM card slot above the body.

 

This mobile phone uses a micro SIM card. The micro SIM card is smaller than the standard SIM card. We recommend that you first remove the SIM card and reinstall the SIM card. To reinstall the SIM card, follow these steps:

1. Remove the back cover of the mobile phone.

2. Remove the cell phone battery.

3. Place the golden contact of the SIM card down and insert it into the SIM card slot.


Note: Do not insert a micro-SD card into a micro-SIM card slot. Otherwise, the memory card will be stuck in the SIM card slot. This is due to human reasons and will not be guaranteed in accordance with the warranty regulations.

4. Insert a cell phone battery and re-cover the back cover of the mobile phone.

 

4. Clear information data

: If the information is not displayed properly, you can try to clear the information data. This operation only clears the settings and does not delete short messages on your phone.

 

1. Click application on the standby page ].

2. Click set ].

3. Slide the screen up and click Application Manager ].

4. Slide the screen twice to the left and find the all option.

 

5. Click information ].

6. Click clear data ].

7. Select OK ].

5. Restore the factory settings of the mobile phone

: The above situation may be caused by the existence of third-party software or some settings on the mobile phone that shield the network.

1. Click application on the standby page ].

2. Click set ].

3. Slide the screen up and click Reset ].

4. Click restore factory settings ].

5. Click Reset device ].

6. Click delete all ].



After the restart, the mobile phone will be successfully restored to the factory settings.

6. If the above operations fail to work properly
1. if the unread information icon cannot be canceled after the factory settings are restored, it may be caused by problems such as the signal and parameters of your phone card. We recommend that you change the network period, you can also try another phone card that can be normally used on another phone to check whether the phone can be properly displayed.