Was updating the firmware of the Multiplus 24/3000 using VictronConnect and an MK3-USB. This failed halfway, and since then the inverter showing LED lights solid on. I tried redoing the update with VE.Configure with no success, at this point the MK3 won't even see the inverter any longer. A victron engineer came over to try and couldn't update it either
Is there a way to get the inverter back to the old firmware
Cheers