Inadvertently reduced the font displayed by Lenovo mobile phone p650wg SMS, how to increase the font?

This is the system font and needs to be changed in the system settings. The method is as follows:

1, enter Settings-Display-Find the "Font Size" option;

2. Click Font Size to select or change the font size.

After setting, exit the setting and check it again. The font in the text message should have become larger.