'  firmware update

LGUS991 Stock official firmware (Rom) List

Name Model OS Region Size Download
LG G4 LTE-A LGUS991 (US99125A_00) Android 6.0.x Marshmallow UCL 1.42GB Download (22102)
LG G4 LTE-A LGUS991 (US99110D_00) Android 5.0.x Lollipop UCL 1.60GB Download (9163)