Finally users who bought LG G4 in USA from Sprint can now be happy because Sprint has published a new update chart for LG G4 in USA. The new update is of Android 6.0 ,Marshmallow. The report was published on 17/12/15 that means yesterday.
As you know that the update comes in stages so it may take some hours or some days to reach your phones but it will surely reach as it is already on servers. The model of LG G4 getting the Marshmallow update is LS991ZV9 which is the LG G4 in Sprint.
This update includes Sprint’s global roaming feature along with Marshmallow update.