This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited. 1 e7 e/ ?5 d0 n) M r, @4 z 3 I+ H: P- p6 T- H2 y. KUser manual on Youtube: 1 ^" |9 c& d: R4 M+ F8 W0 o0 s% dhttps://www.youtube.com/watch?v=k5VKiexTyGc , `1 {7 ~ }& {/ A8 `+ ?! ?/ Q/ \# D" k5 j
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