[Vibraphon]

Hello and thank you.

Yes I tapped on the SD-Card button, but nothing happend.
The message I showed was generated when I tried manually to change the location by using the Browse-button .

I don't know anything about API and so on.

I only want to move the mass data of PNG, PDF, MP3 and WAV to the SD Card, because I have only 8GB internal memory, but 30GB external available.

I think, there is no write access necessary on the SD card, because the original files should not be modified.
Using the explorer I can move them to SD card, but mobilesheets doesn't read them from there.
I don't know why, because mobilesheets can read files from the SD card for example for import.

On my first tablet everything is working well (POV 1325 Andriod 4.4)
The second one (POV I1345, Android 5.1.1) doesn't work.
I want both tablets only be used for mobilesheet.