[GraemeJ]

In an attempt to "improve" security, the later Android versions will only allow writing to the external card under very specific (and app-related) conditions. From the point of view of an idiot user, this might (but only might) have some advantages, for anyone even mildly computer literate it's a real PITA.

I've just purchased a new tablet (for use as a backup) and ot runs under Lollipop 5.1. Needless to say, I ran into exactly the same problem of writing to the external card. On a previous tablet, I solved the problem by rooting it and then changing the permissions to allow writing to the external card. On this tablet (an eSTAR GRAND HD Quad-Core 4G) I have yet to find a way to root it. All the methods I know of have failed and I get a string of reports saying the device can not be rooted.

However, I have found a way to write to the external card, one which may work for you as well.

Load the external on your PC and then, using a file managing tool, create a directory and sub-directories as follows;

Android/data/com.zubersoft.mobilesheetspro/files

Put the card back into your tablet and open MSP Settings. In the Storage section, tick 'Let MobileSheets Manage My Files' and then cursor down to 'set the MobileSheets Storage Location' and tap on it. In the menu that opens, tap on the INTERNAL icon (that's the left one that looks like a folder) this will open the Android file manager. Now, tap on the < symbol at the top left corner, until you get back to the 'root' directory. From there, you can set up a file path to the external card. It will look something like:

Root/storage/extSdCard [or whatever your tablet calls it]/Android/data/com.zubersoft.mobilesheetspro/files

Once you have set the path, tap on 'OK' (centre bottom of screen) and check that the correct path shows in MSP. Click on 'OK' and you're done and the files should now write to the external card.

Have fun! Let me know how it goes.