This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited.; b# @$ g4 e, O/ Y2 F) h: n8 H6 q
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User manual on Youtube:3 s2 s- Y F6 H9 U- B7 |' ] https://www.youtube.com/watch?v=k5VKiexTyGc& Q% ~2 f6 s* ?; E* f
% u/ t. j" P3 x3 wFor enquiries, you may contact Yfisoft Limited at (852) 3524 7258 or email info@yfisoft.com.