Use the YubiKey NEO Manager to change the connection mode of your YubiKey NEO device. For example, older YubiKey NEO devices were not shipped with CCID mode enabled (required to manage apps on your device). This document describes how to use this tool. Note that all YubiKey NEOs shipped after November 2015 come preconfigured with all modes enabled.
(This tool works on all Yubico devices except for the FIDO U2F Security Key.)
YubiKey NEO Manager v1.4.0