KTF Korean Variant LG G Stylo F560K Stock Firmware Android Lollipop 5.0 Updated KDZ File. Here you can Find KTF G Stylo Phone Official File And Complete Guide For How to install Stock ROM on LG F560K Device Just Follow Below Content Instructions. LG G Stylo F560K Korean Phone Specs And Lollipop 5.0 Update Operating System: