@Beckham To successfully add a model on the APP model upload page, please ensure the following conditions are met:
The printer will have free space after binding with your mobile phone. Your mobile phone should have storage access rights enabled. The file selection window should open successfully. The file suffix must be .stl (case-insensitive). The number of files uploaded should not exceed 10. Each file must be able to be opened. The total capacity of the uploaded files must not exceed the remaining available capacity of your storage area.If that can't help, plz send your STL file to WhatsApp: +86 189 3601 2338