ok, so 2 of my installed screw actually have bad head so it's hard to unfasten itjust finally able to unfasten it today after little bit struggle so here's the questioni want to change it, but i don't know the names or search termcould somebody tell ...

i just bought this baby for a week ago via a store in my country (indonesia). They said i can't get a warranty because this particular series got imported unofficially.Kind of sad but i love this baby so i bought it anyway.And now when i unintentiona...