Hello, I made the PCB on a 3rd party platform. At present, according to the guide, the Gerber file, BOM and CPL have been imported, but the generated preview obviously lacks the physical drawing in the guide. It is a big blue component strip with a QR code in the center. Please forgive my metaphor, but the BOM does not have relevant models and specifications. Please have a look, thank you
Hello, thank you for reaching out. When we order and assemble our PCBs, we populate the Teensy 4.1 and Arduino Nano 33 BLE ourselves. We also solder pin sockets onto the PCBs and mount the Teensy and Nano on those sockets, rather than soldering them directly to the board. I’d recommend double-checking with your PCB manufacturer to confirm the orientations of any populated parts.
I hope I addressed all your concerns. Let me know if you have any questions.

