Change build.prop ro.product.model SM-920K to SM-920F stop working HW Moduel Test

[Jojo peter]

Change build.prop ro.product.model SM-920K to SM-920F stop working HW Moduel Test when it is Korean *#0*# code works perfectly when i change to international stop working HW module test *#0*# it displays white screen!! How should I solved this problem?