Preloaded Apps not shown in phone after M OS (Android 6.0) Update :
A G4 user might face the issue after update Marshmallow OS that some preloaded applications are not visible in the phone menu.
e.g. “Voice Mate, Remote Call Service, Smart World, Quick Remote, LG Health, Weather, Evernote, Quick Memo+, FM Radio etc.
The reason being, that apps also get updated for use with new OS & hence the latest version of the apps
have to be downloaded to make them work with the new OS.
This can be done as per the below process
Go to update centre & Download the apps. After that they will be visible in the phone menu.