Read internal error codes, alarms, and historical event logs.
Corrupted COM port driver or conflicting software (e.g., Home Assistant). Fix: Close all other serial monitoring tools. Reinstall FTDI driver from ftdichip.com. battery viewexe pylontech download verified
Ensure your USB-to-Serial adapter drivers (often FTDI or CH340) are installed so your Windows Device Manager recognizes a "COM Port." How to Use BatteryView Safely Read internal error codes, alarms, and historical event logs
: Check portal documents from major distributors like SegenSolar , which provide official BatteryView Upgrade Guides . Read internal error codes