Hi...thanks! Yeah I have the Xiaomi too, the white one? Ive heard that one key is to get it away from your phone to really extend range...I tried it with a power bar (cellphone battery). Not sure about any more range...It was a windy day... I am curious what you mean by fast mode helped you rescue your drone? I have found that being able to land...or find that button fast has gotten me out of trouble..even if I exit it later. it seems to stablilize it.Im using a Xiaomi wifi extender powered from the OTG port on my S8.
I can easily reach the full length of a football pitch which is plenty far for me as the drone is barely visible.
Using fast mode has been key to rescuing the drone a couple of times.