Can be exchanged.
How to change the wallpaper of Xiaodu Smart Tablet: After opening the settings interface, select and click the "Wallpaper" option. After opening the wallpaper interface, select and click the "Select New Wallpaper" option to change it. If you can't find the option to set the wallpaper, it may be that the system does not come with a screen saver (pure version). Downloading a screen saver online will most likely solve the problem.
The Xiaodu Smart Learning Tablet is a smart learning tablet specially designed for learning launched by Xiaodu. It will be available for pre-sale on February 24, 2021. Xiaodu’s smart learning tablet has the “Ushi Blue” hardware patent for large-screen anti-blue light and 12 layers of smart eye protection, ranking first in the authoritative evaluation of the Chinese Academy of Sciences.