My son has been using a rooted Galaxy S4 with Resurrection Remix Nougat 7.1.1_r6. He is under 13, so my user is the primary account, and I created a secondary account for him. I am now switching him over to my old Nexus 9, but now that Google has accounts for kids, I have made his account the primary account on the Nexus 9. How do I backup the app data from the secondary account on the Galaxy S4 and move it to the primary account on the Nexus 9 under a new google account? This is what I have tried so far:
- Titanium only works in the primary account and doesn't seem to let me back up data from the secondary account.
- Helium only runs in the primary account, and doesn't seem to let me back up data from the secondary account.
- When I connect my PC to the phone, I can view photos, but I cannot view the app data directories.