| Problem | Likely Fix | |---------|-------------| | “No response from battery” | Wrong COM port / cable not connected / battery not powered | | “Access denied” | Run as Administrator | | Battery View crashes on launch | Install missing Visual C++ runtimes | | Chinese characters in UI | Some older versions are Chinese-only; request an English version | | Cannot find COM port | Install USB-to-serial driver (e.g., FTDI, CH340, CP2102) |