Biqu B1 troubleshooting & repair, bad X endstop broken SD card, Grinding on home

This printer came in with a unkown problem. It turned out to be a bad X axis endstop. The soldered on a new endstop. The endstop is part of a larder PCB that would be hard to find. Biqu B1 https://amzn.to/3YmZsW0 My Favorite PLA https://amzn.to/3YmZqgQ Sponsors http://www.oc3dtech.com http://www.fintechcommunications.com http://www.ocdatacabling.com http://www.ocdatasystems.com http://www.bloodlinefishing.com