This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited.8 V s1 z8 I/ t, _3 r
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User manual on Youtube:. d8 S" K; {3 q3 U2 Y& [* [* ?0 l; [ https://www.youtube.com/watch?v=k5VKiexTyGc ; N5 {6 o6 F- Y1 U. {. F 6 D. F! p% h, B/ I: M6 F9 kFor enquiries, you may contact Yfisoft Limited at (852) 3524 7258 or email info@yfisoft.com.