PR1X
 |
FAQs & Troubleshooting |
Upper thread tightened up.
The bobbin thread is incorrectly installed.
Correctly install the bobbin thread.
If your question was not answered, have you checked other FAQs?
Have you checked the manuals?
If you need further assistance, please contact Brother customer service:
Content Feedback
To help us improve our support, please provide your feedback below.
