This captioned video teaches user how to use a freely used cloud software "Wi-Fi Doctor", which is proudly developed by Yfisoft Limited.! o# t+ i+ \, p. B
0 ? |1 N4 V t7 a6 j7 d: P
User manual on Youtube:, B% f, u! ~9 m. r3 A https://www.youtube.com/watch?v=k5VKiexTyGc 4 `7 n6 A' W% S' m- C+ n % q1 l1 R! ~: Q s" r, x. r7 nFor enquiries, you may contact Yfisoft Limited at (852) 3524 7258 or email info@yfisoft.com.