Please follow the instructions below and carry out the update.

※ Deleting game cache/data and reinstalling the game wipes out all in-game data of guest accounts. Ensure that your account is linked before carrying out these steps.

■ How to Solve the Google Play Store (AOS) update problem

1. Tap [Settings] > [Apps] > [Google Play Store]

2. Delete updates, cache, and data

3. After rebooting the device, open Google Play Store and select [Agree] on the pop-up

4. Reinstall MIR2M : The Grandmaster 

*More information: https://support.google.com/googleplay/answer/7513003?hl=en

■ How to Solve the App Store (iOS) update problem

1 Tap [AppStore] > [Update]

2. Drag the Update Category screen down to refresh the update list

*More information: https://support.apple.com/ko-kr/HT202180