[Galaxy S 4 i9505 Android Development] Annunneo:
For anyone having problems with titanium backup follow these steps, I did and it worked. You may have to do it a few times for it to stick.

[quote name="FernBch" post=63997008]I've been doing some research on storage access in 6.0. Particularly for extsd access. Permissions and how they are granted have changed from previous versions of Android. It seems that read and write access must be asked for and then granted before an app can read and write seperately. It is not "automatically" granted anymore. That would explain why extsd access for most apps is not working as before.<br />

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Info here:<br />

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https://groups.google.com/forum/m/#!msg/eyes-free/rspqjlmu_ss/ouM7TMH-BQAJ<br />

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I have been able to get one app, Root Explorer, to play nice with my extsd card but none of the others. TiBu sees the card and I can restore app data from the backup folder, but that's it. I cannot write backup data to it and I can't restore a previous Android ID. The app does not have proper permissions granted to do so.<br />

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Other apps such as Docs to Go and Avast Mobile Security don't even see it. I can browse to a file on it with Root Explorer and open it with D2G, but I can't open it from within D2G. In Avast I can't have the card included in a security scan because of it.<br />

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One other note. If you do decided to use the sd card as internal storage make sure to reboot afterwards before you actually start using the newly formatted storage space or there will be issues. Also after you do this the storage card cannot be moved and easily used in another device because it is encrypted and made part of the originating device's file storage system.<br />

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So, if you have extsd issues it isn't the ROM's fault. It's because of changes in 6.0. The team isn't going to be the one to fix this, the app developers will have to.<br />

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That is if I understand all that I have read correctly.[/QUOTE]<br />

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I have managed to get Titanium Backup to backup apps on my ext sd card.<br />

Here are the steps:<br />

- Open titanium backup and go to preferences -> backup folder location<br />

- Just above the detect button, you have: Storage provider. Tap it.<br />

- From the list choose DocumentProvider Storage<br />

- In the newly opened window, click the menu button in the top right corner and choose: "Show SD card"<br />

- Open the navigation drawer on the left (the button on the top left corner) and choose SD card<br />

- Choose Select in the bottom right corner<br />

- Now in Titanium backup, navigate to the folder with your backups and choose: "Use the current folder"<br />

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It should work now. If not, try again and mess a bit with it. I actually had to try this a couple of times. For example, the first time the Document app opened, after tapping on Show SD card I couldn't see anything in the navigation drawer.<br />

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Also, you will know if it works because below the detect button, the second row I think, will say something like: "Cannot write to this location" (or access or something...I forget [emoji14]) with a red marker next to it.<br />

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Hope this helps.

---------- Post added at 08:20 PM ---------- Previous post was at 08:02 PM ----------

I also have my SD card formatted to exfat and its working fine.