Every file sent to me appears both in my gallery and "my file" apps. This takes up space. To save space, I tried to move the files from "my fiIe" to the sd card but noticed that the file still remain in "my file" and the same correctly in the sd card. This is no good as it did not give up any space in "my file". What was surprising was when I deleted the unmoved file from "my file" the file that appeared in the sd card was also deleted. Resulting in the file that I needed being totally deleted. Pls advise how I can delete files from "my file" without deleting the same file which had been moved to the sd card. Thanks.