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I have an old phone which I used for a few month when my S4 was broken. I managed to backup and restore the app data from S4 to this phone by just copying /data/data/appname/data/data/appname - however both devices were 4.x .

Now I have a new phone with 6.0 Marshmallow and I intended to do the same thing - and failed.

Example whatsapp: I copied the old apk, installed it to 6.0 and then (in twrp) replaced /data/data/com.whatsapp/data/data/com.whatsapp with the old one.

For testing I also set it to chmod 777chmod 777. Whatsapp shows a notification (A problem with chat history) and if I start whatsapp it closes (crashes?) immediately.

Any idea how to copy the old app data to marshmallow? thanks.

I have an old phone which I used for a few month when my S4 was broken. I managed to backup and restore the app data from S4 to this phone by just copying /data/data/appname - however both devices were 4.x .

Now I have a new phone with 6.0 Marshmallow and I intended to do the same thing - and failed.

Example whatsapp: I copied the old apk, installed it to 6.0 and then (in twrp) replaced /data/data/com.whatsapp with the old one.

For testing I also set it to chmod 777. Whatsapp shows a notification (A problem with chat history) and if I start whatsapp it closes (crashes?) immediately.

Any idea how to copy the old app data to marshmallow? thanks.

I have an old phone which I used for a few month when my S4 was broken. I managed to backup and restore the app data from S4 to this phone by just copying /data/data/appname - however both devices were 4.x .

Now I have a new phone with 6.0 Marshmallow and I intended to do the same thing - and failed.

Example whatsapp: I copied the old apk, installed it to 6.0 and then (in twrp) replaced /data/data/com.whatsapp with the old one.

For testing I also set it to chmod 777. Whatsapp shows a notification (A problem with chat history) and if I start whatsapp it closes (crashes?) immediately.

Any idea how to copy the old app data to marshmallow? thanks.

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Restore app data from 4.x in 6.x

I have an old phone which I used for a few month when my S4 was broken. I managed to backup and restore the app data from S4 to this phone by just copying /data/data/appname - however both devices were 4.x .

Now I have a new phone with 6.0 Marshmallow and I intended to do the same thing - and failed.

Example whatsapp: I copied the old apk, installed it to 6.0 and then (in twrp) replaced /data/data/com.whatsapp with the old one.

For testing I also set it to chmod 777. Whatsapp shows a notification (A problem with chat history) and if I start whatsapp it closes (crashes?) immediately.

Any idea how to copy the old app data to marshmallow? thanks.