Pendrive files or video or audio don't open

Neil - Updated on Apr 22, 2017 at 04:14 PM

My HP 2.0 flash drive v250w is not working properly . I can easily transfer my files ,
audio and video from my computer to my pendrive but after some days or a month
when i try to open my files or video or audio some of them doesn't open .
there is one more problem that when i connect this pendrive with my smartphone
with the help of OTG then my smartphone does not read this pendrive . so thats all
i want from you . please solve my problem .