Angry birds backup - HTC One, not rooted?

[jools182]

I have to send my phone back to HTC because of the pink tint on the camera in low light

I want to save progress in angry birds

I used to use an app called angry birds backup but it doesn't seem to work now

Any ideas that aren't complicated?

 

[B. Diddy]

Do you have a Rovio account? It looks like you can save your progress to that account on the original Angry Birds. Not sure about the other Angry Birds games. Rovio Account Lets Angry Birds Players Save And Sync Progress Across Devices, Coming To More Games Soon