Nubian nx403a mobile phone message can't be seen, but it can be searched after receiving it. What should I do?

It is recommended to exit the easy mode and restart the phone. Easy mode is a convenient and clear mode designed for the elderly, and ordinary mode can generally be used. If it is not possible, it is recommended to back up the mobile phone data and try to double clear the mobile phone. The steps of double clearing are as follows: (1) Step 1, turn off the mobile phone; (2) Press and hold the volume increase button+power button when the mobile phone is turned off, release the power button after the mobile phone vibrates and restarts, and keep pressing and holding the volume button until it enters the recovery mode; (3) At this time, you can use the volume up and down keys to move the cursor to the wide data/factory reset line, and then press the power button to select it; (4) Move the cursor with the up and down keys of the volume, move the cursor to the Yes-deletealluserdata line, and then press the power button to select it; (5) The mobile phone will restore the factory settings, and then the mobile phone will return to the main menu, use the up and down keys of the volume to move the cursor, move the cursor to the wipecachepartition line, and then press the power button to select it; (6) Select the rebootsystemnow line with the power button, and the mobile phone will automatically restart, and the double clearing is finished. If it still can't be solved, it is recommended to go to the local after-sales inspection. The after-sales customer service center can inquire: /service.php? sid=3