波兰采购需求：电池管理系统，BMS电池，BMS模块，锂BMS，BMS锂电池，适用于Lifepo4的BMS

I hope this message finds you well. I purchased 36 BMS units around two years ago, and I'm encountering a problem where the BMS isn't displaying the current measurements during charging or discharging cycles. It seems like I might need to perform a current calibration to resolve this issue. Could you assist me in obtaining the PC software necessary for this calibration? I've noticed that the mobile app does not provide the option to calibrate the current settings. Your help in providing the software or any guidance on how to proceed would be greatly appreciated. Thank you!