Board Thread:Questions and Answers/@comment-26131865-20150719105249/@comment-24659969-20150720111020

Depends, do you have BCJP registered or not in your playstore. If not:

1. Restore the helium save data first

2. Download latest apk (no need for the data, just apk)

3. Install latest apk, please note if when you are trying to install the apk whether your android says "Newer version of apk will overwrite existing app, application data will be kept" or "older application data will be erased"

You are good to go if it is the former, and no go if it is the latter

4. Once done, open the app and download data from in-app downloader

If you have BCJP registered in your playstore:

1. Install the BCJP from playstore first / skip if you have it installed

2. Restore helium data, overwrite apk.

3. Go to your playstore app list, look for BCJP. OR you can open this link thru your phone - open with Playstore: https://play.google.com/store/apps/details?id=jp.co.ponos.battlecats

manual update!!

4. Done, open the app and download data from in-app downloader.

Would you like a v4.0 save data instead?