Nubian Daniel z5s mobile phone keeps displaying unread messages. What happened?

Hello, in this case, it is recommended to use the backup data double clearing system. If not, please download the official ROM package and refresh the machine.

Shuangqing tutorial:

1, when you can boot into the system, enter system settings-about mobile phone-system update-and enter recovery mode.

2. If you can't enter the system, press the power button+volume up button at the same time, and directly enter the recovery interface (keep the phone fully charged).

Double cleaning (factory setting recovery method):

1, use the volume up and down keys to move the cursor, move the cursor to the erasing data/factory reset line, and then press the power button to select it;

2. Use the up and down keys of the volume to move the cursor, move the cursor to Yes-delete all user data lines, and press the power button to select it;

3. At this time, the mobile phone will restore the factory settings, and then the mobile phone will return to the main menu;

4. Move the cursor with the up and down keys of the volume, move the cursor to erase the cache dividing line, and then press the power button to select it;

5. Use the power button to select the reset system now line, and the phone will automatically restart, and double clearing will be completed.

Please refer to the download link of system ROM for the credit card course!

Thank you for your concern and support for Nubian products. I wish you a happy life. Thank you.