On my manta tablet running LOS 16, I installed OABX 4.0. I took a backup. Then, I upgraded the ROM To LOS 17.1. Now, when I try to go to restore, nothing shows. Even though I have linked to the backup/restore folder several times. The issues to provide a location keeps coming up. I can't backup or restore. I have installed the app from f-droid and also, the one in the backup/restore folder. Funny thing is, even though ALL settings are enabled, and nothing shows up, I see my apps flash for a second and then disappear. I was afraid I did not do the backup properly, but I know there are there. What is going on? Worse case, I flash back LOS 16 and try a restore.
EDIT1: This might have to do with permissions to read / write. I haven't done anything wierd; its a clean install and I have magisk latest. What more do I need?
EDIT2: The path in .properties was screwed up. I used notepad++ to change it in bulk:
http://cybernetnews.com/find-replace-multiple-files/. It worked!
Use notepad++, to search and replace the following. In my case:
From: content://com.android.providers.downloads.documents/tree/downloads/document/raw%3A%2Fstorage%2Femulated%2F0%2FDownload%2FOABackupX%2F
To: content://com.android.externalstorage.documents/tree/home%3A/document/home%3AOABackupX%2F
Example:
http://cybernetnews.com/find-replace-multiple-files/
Oh, before that, use Unix Line Ending so you don't experience problems, if in Windows.
For those trying, no support is provided; do it at your own risk. Or, wait for an official release.