Why is it so important to bind your account?
Because the vast majority of MR account IDs (ex. 1234567) are matched up with a device number, if you inadvertently reset or change this device number, then it will result in a change to your account ID.
1. We strongly suggest you use the account binding function. Binding your game account to a third-party platform will ensure that your game progress does not get lost and also enables you to play the game on multiple devices.
2. By using the account binding function, you can also start multiple in-game accounts by binding them to different third-party platforms. (MR supports account binding via third-party platforms such as: Game Center, Facebook, Google Play, VK, etc.)