adb backup with flyme os 4 and chinese mx4

If have the chinese version of the mx4 with flyme os 4.2.8.2u.

I want to do a back with ADB but somehow it finishes the backup immediately without any error.

  1. adb backup [I tried various options]
  2. confirmation on the device
  3. backup started
  4. backup finished

The backup file is just a few KB in size.

Any ideas on this topic ?

Is it even possible to do an ADB backup with Meizu MX4 ?

last edited by robberer

Define “normal” MX4 :-) . I’m new to Meizu.

Model: MX4
Flyme Version: 4.2.8.2

No root because I can’t register a Flyme account. Just USB debugging enabled.

Edit: I can use other ADB commands like “adb shell”

last edited by robberer
Meizu MX4

@robberer
Normal MX4: Android version
Unlocked MX4: Ubuntu Touch version

Looks like your connection to Meizufans was lost, please wait while we try to reconnect.