I already have Bluetooth printing code in my Flutter app, yet nothing reaches the thermal printer on either Android or iOS. I need a focused bug-fix that: • Reviews the current Dart logic and any platform channels I’ve set up for printing. • Identifies why the printer is not receiving data or failing to render it correctly. • Implements a concise fix so the printer reliably produces output from both Android and iOS builds. I’ll provide the existing repository and the printer model details as soon as we start. A short explanation of what was wrong and the lines you changed will help me merge the patch quickly.