How to upgrade firmware epever 6415AN via rs485

[frankz66]

Hi , i'have a scc epever 6415AN , and i want upgrade the firmware via rs485 ethernet adapter . I' have a convert rs485 modbus compatible and i'use this for monitoring a controller epever via HA and via epsolar software . i should upgrade this controller because is have a bug in the clock , at random time the controller erase the amount power of day . i ask if some one can hel me for the correct procedure .