CODEWITHSUNDEEP
androidadb
Ken Ratanachai S.
Ken Ratanachai S.

Reputation: 3547

How to fix adb backup return 41 bytes

These are the two commands that I always use to get SQLite file from Android device to view and debug. 

$ adb backup -noapk com.example.app
$ dd if=backup.ab bs=1 skip=24 | python -c "import zlib,sys;sys.stdout.write(zlib.decompress(sys.stdin.read()))" | tar -xvf -

However, I don't why now I cannot use it. the back.ab I got from the first command will be 41 bytes and the second command will not work. The commands still work for other apps though. Only problem with this app I am working with.

I have tried a solution in this link but it's the same. I vaguely remember that I face this problem before because I am doing something wrong like typo in package name. This time I double check and my package name is correct.

Upvotes: 2

Views: 3107

Answers (1)

Ken Ratanachai S.
Ken Ratanachai S.

Reputation: 3547

It turned out that this problem caused by having android:allowBackup="false" in AndroidManifest.xml, which I added to stop Auto Backup for Apps while I'm developing my app.

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.app">

    <application
        android:allowBackup="false"
        android:icon="@mipmap/ic_launcher"

So just remove the line and the $adb backup will work again

Upvotes: 3

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