Copy FAIL if battery level below approx. 70%


I have found very interresting issue with my SanDisk iXpand Flash Drive 64GB model.

I am using iPad PRO 9,7" with iOS 10.x and iPad PRO 10,5" with iOS 11.2. On both is SanDisk app v4.5.

When I want to copy any file from iPad do the flash drive with battery level below approx. 70% (I am working on search of exact level), the copy progress bar hangs at very beginning and after a second, app pops up an error message “FAILED to copy…”.

The file then shows up on the flash drive, but with zero kB size.

Can you please help me with this?



more then likely an issue with the particular file it is failing to copy than the battery level. i would suggest contacting sandisk support and submitting logs so they can take a look.