When you link your social account to your Nitro Nation profile, you should be able to use the same social account to log in back later on other devices, for example.
To do that
- Go to Garage - Profile - Edit
- Tap any of the social account buttons to link them
If the social account is already linked to some Nitro Nation profile, the game won't allow you to do that 2nd time and display "account is already in use" error message.
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