hi i encountered a problem and i searched a lot and found nothing useful when i connect my phone ( samsung j7 pro) to pc it recognizes both sd card and internal storage but when i copy some files from pc to sd card the copying bar fills up to more than half and then hangs and after 5-6 minutes it stops and nothing can be copied. it is noteworthy that when i copy files from sd card to pc it can be copied without problem . btw i tested with an external hard and files can be copied to it easily so i think the problem is from my phone