匈牙利采购需求：电池管理系统、BMS电池、BMS模块、锂BMS、BMS锂电池、Lifepo4 BMS

I recently started building my battery storage system using a BMS I purchased earlier. I need to connect this BMS to my inverter, but I'm facing communication issues. Currently, the inverter displays only the battery voltage, and I'm not receiving any additional data. It seems like a software update might be necessary. I've been using the Smart BMS app on my iPhone for this purpose. I also have a Bluetooth adapter and a USB data cable for my laptop. Could you please guide me on how to update the software and establish proper communication between the BMS and the inverter? Your assistance would be greatly appreciated.