User blog comment:Fredy-san/Untitled blog of 21st May/@comment-27281654-20160606104026/@comment-24659969-20160606104349

1. You need a rooted Bluestack. I think in latest official client update, Bluestack now is always rooted already by default.

2. You need to install Titanium Backup into it, get the free one is enough

3. You need to transfer the backup data into bluestack file repository. To do this, you can use workaround such as using the bluestack in-app browser to download the file link above.