After installed the whole ESS System I wanted to update my MP2 48/5000/70 to the newest Firmware. It startet fine but lost connection. Tried IT again and said "no VE. DIRECT" device found and made a warning Light "Boot-loader" :-/ error Code 745 "cannot find VE.Bus System"
I updated it via Cerbo GX, no BMS, no Inverter or other things connected. Cerbo got voltage from 48v battery Pack. I dont have MK3-usb.
Do you have any idea how to Set it back to dealer config... Is there a way to update without ve.bus
Othet LAN cables tested
Thanks & bes regards
Rene