This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited. ( g1 p3 {8 T0 i & t7 }$ ]6 ~7 {% c# _8 v G& m/ kUser manual on Youtube:( U7 ?4 T o+ U; o# w https://www.youtube.com/watch?v=k5VKiexTyGc 2 l0 y# o( g. ?0 d: S0 R8 T E, v# A3 `/ a
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