SDCard used as internal storage can fail
Summary
At some point, a SDCard used as internal storage on a FP3 with Android Q can fail
The problem
Steps to reproduce
Use a SDCard as internal storage
What is the current behavior?
At some point (why, when how?), the SDCard is not working anymore and the content lost.
What is the expected correct behavior?
SDCard work reliably
Technical informations
Problem is not specific to /e/: https://forum.fairphone.com/t/android-10-microsd-as-phone-storage/64806/2
Relevant logs (adb logcat)
Relevant screenshots
Solutions
Workaround
It seems SDCard used as external storage are not affected.
Waiting for a fix, we can only advise all users not to use SDCard as Internal Storage on FP3.
Possible fixes