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mitchellamySep 8, 2025
What to do if my Brother All in One Printer displays 'Authentication Error 01 Incorrect PIN code'?
- Sshane08Sep 8, 2025
If your Brother All in One Printer displays 'Authentication Error 01 Incorrect PIN code', it means the PIN you entered to access the account is incorrect. This PIN is the four-digit number you entered when registering the account to the machine. To resolve this, simply enter the correct PIN.