Hi everyone,
To play version 5.30.0 of Dokkan Battle, I’m using the LDPlayer 9 emulator.
When I first installed the APK and tried linking it with Google, the game just kept loading. What worked for me was closing the game process and reopening it. On the next attempt to link, I got the usual message saying “The game data transfer via Google was canceled.”
Once that message shows up, I completely close the emulator, start it again, launch the game, and try linking once more. After doing this, it eventually linked successfully. In my case, it worked on the second try as long as I went through the steps quickly. Hopefully this helps anyone running into the same issue!