Many connection issues stem from outdated USB-to-Serial drivers. Tools like Driver Talent can help keep your COM port drivers updated for error-free communication.
The original native release of SSCOM has a Chinese interface. However, version 5.13.1 is widely distributed by the electronics community with translated English labels. When downloading, look for files labeled "SSCOM 5.13.1 English" or check community forums like EDA boards or GitHub repositories. Sscom 5.13.1 English