This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited. / q. ?" E' }# b0 U0 N5 U! y# L I. C/ }4 z7 B
User manual on Youtube:. }7 v2 [/ [. w8 o9 ] https://www.youtube.com/watch?v=k5VKiexTyGc & e, M( ~! \) _2 F' H ]# X8 b S9 Y* T
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