I cannot comment in this post which provides a solution to backup and restore an app from-to android devices. I could make the backup following the instructions with my old phone. Then, after connecting the new phone in USB debugging mode to my computer desk where I have adb (1.0.31) , when I try to restore the backup.ab file (600MB) using this command adb restore backup.ab. Nothing seems to happen it just appear this line in the cmd window:

Now unlock your device and confirm the restore operation.

But no message is prompted in my mobile phone, it just keeps there with nothing happening apparently. Any ideas what might be the problem or how to overcome this? I am new in this and I would really appreciate your help!

Pd: when I apply these commands:

adb shell getprop ro.build.version.release  adb shell getprop ro.build.version.sdk  

To my new phone I get 6.0.1 and 23, respectively. To my old phone I get 4.4.4 and 19, respectively.

Both phone are Xiaomi.