Question: how do i transfer pictures from my android phone to a flash drive?
Answer: Connect a flash drive (or SD reader with card) to the full-size USB female end of the adapter. ... 
Connect OTG cable to your phone. ... 
Tap USB Drive.
Tap Internal Storage to view the files on your phone.
Find the file you'd like to share. ... 
Tap the three dots button.
Select Copy.