"Check if lower thread is broken." message appearing on the LCD.
What does it mean and how do I clear it?
The bobbin thread broke or ran out.
Check that there is thread on the bobbin and that approximately 50mm(2 inches) of thread has been pulled out, and then re-install the bobbin.
If the start/stop button is pressed while the machine is not correctly set up or if an incorrect operation is performed, the machine stops and informs you of the error with a buzzer and an error message.
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