Hi,
because I'm investigating a potential bug, I tried to downgrade my Multiplus II GX to a previous version.
I followed this guide which says it's okay to do this:
Note that while backporting is no problem in general, it may be that some settings are reset to their default values. Be sure to check this.
I loaded the .swu file (venus-swu-nanopi-20181016100243-v2.20.swu) from the nanopi folder onto an USB stick and started the downgrade via the Remote Console from v3.14 to v2.20.
After a while the screen went blank and this is the situation I'm stuck in.
The GX is not reachable in the network via Wifi or Ethernet. Pushing the reset button didn't help either.
The Inverter card is still accessible through VE Connect.
Any chance to force an upgrade from an attached USB drive? How can I recover from this state where the GX is "broken"?