BC-2100/BC-2100PRW FAQs & Troubleshooting BC-2100/BC-2100PRW Not your product? Sort by Updated Date Popularity 1 Results 1. 09/24/2020 How to use the Bobbin Work Kit. (Optional accessory : SABWRK1 / BWRK1) [Video instructions] Instructional videos FAQs & Troubleshooting