This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited.& _7 n( r* w0 o* t: P: B
! t1 d$ g% v1 U, V6 J, T3 I3 L) uUser manual on Youtube:! w5 S6 u' u3 A/ `+ i1 P https://www.youtube.com/watch?v=k5VKiexTyGc 9 K- G0 d3 }' [. U8 [4 Y% k) `4 F# N3 U/ a2 O
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