I tried to create a symlink for the external SD on a Galaxy S3 as I have done it on my HTC M8 previously. I tried with terminal emulator in command line, with Root Explorer and with Solid Explorer. It always worked and they were fully operational – but when I rebooted the device they are always lost, no track of the symlink previously created. Could someone explain, what is happening and how to correct that ? Thank you.
I forgot, my device is GT-9300 French running Android 4.3