Using VRM remote to update the latest firmware Vxxxx485 (from Vxxx482) was completed successfully and reset to defaults, but received "Error: mk2vsc-46" after trying to upload the latest config file that was saved just prior to the update.
For me, this was not a problem as I needed than needed to connect directly to the MultiPlus 2 on site (not remote) and reconfigure the inverter to the previous update state.
I then downloaded the config file and successfully uploaded the same file. So for some reason, the Vxxxx485 firmware did not recognise the old file. I had also checked the download and upload process prior to the firmware update.
Hope this helps to solve the Error - mk2vsc-46 problem.
