Set the virtual ports (e.g., COM1 and COM2) and click apply.
: Multiple programs trying to access the same COM port simultaneously. miracle box unstable comport
While hardware issues like faulty USB cables or low battery (below 50%) can trigger connection failures, the specific "unstable comport" message is usually software-related. Key causes include: Set the virtual ports (e
Before deep-diving into software, ensure the hardware basics are covered: Set the virtual ports (e.g.