I'd like to recommend creating a account so me or other members can assist you, as guest have limitations in replying here and if we need further Information to communicate with you.
I'll provide a link to register, please come back to your post so we can further assist you . Thank you
Welcome to Android Central! To check your storage, go to Settings>Storage. Which app are you trying to uninstall? Preinstalled apps typically can't be uninstalled.
The make is ZTE. As B.Diddy said, preinstalled apps can't be uninstalled and, with QLink, you may not be able to uninstall (or install) any apps. The service is set up to allow you to make and take phone calls (and some texts) - anything more than that is a bonus.