  Hi Hina420,
1- Hmm… If the card works fine on the PC, try it with any file and see how it works, with copy and paste, open, etc., and then delete. Attention: only with adapter ( not card-reader).
2- The phone , try another card, to see what is wrong…
Luck, and then you tell us, what happened, please.
Regards, Alfred.                                     (Google translated)
