I got solutions first go to Device maintenance and then go storage and click on SD card an then click 3 Dots storage settings after it click Unmount Arrow then again do it Mount It's Done Now you can copy/move files
I got solutions first go to Device maintenance and then go storage and click on SD card an then click 3 Dots storage settings after it click Unmount Arrow then again do it Mount It's Done Now you can copy/move files