OK, I'll try a different app for migration. SMS Backup only crashes on the external SD card. On the emulated card #0 it shows the progress bar, but the messages do not show up... I'll report the progress.
---------- Post added at 01:57 PM ---------- Previous post was at 01:50 PM ----------
Another minor thing...
Is there a solution for making DSP Manager work?
It's not picked up from Apollo, although the button exists. When started separately, it doesn't make any difference to the sound. For Nexus 4 both DSP Manager and Apollo are flashed as a zip, as they need some additional libraries...