Romuald

For anyone interested. I am not sure if i am allowed to do this but i finally got firmware from the actual factory in Taiwan that manufactures my specific unit. Its the VMiii 5kv unit with 48volt battery (I also have a Pylontech 3000 battery connected to it with no communication issues. )
I had constant issues with unit resetting stored settings and fan always on issues. I got the latest firmware from the factory for the Display unit and the Main CPU firmware.
They were very professional and quick to assist me after the local Company did not do much to assist, they did eventually respond but still did not give me the correct info.
After updating both the Main Firmware and the Display firmware my unit is way more stable and quieter. No fans running 24/7. I upgraded from 41.03 to 41.16 main cpu and 2.00 to 2.61 on the remote Display CPU and it is way more stable. This might not be the latest i don't know but it seems stable.
Was super easy to do. Hope this can help someone that is struggling.
Please note this firmware is for the VMiii 5kv Offgrid inverter with the Screen on the bottom left side of the Inverter box see image attached i believe the same as the kodak inverters.
I accept no responsibility for you bricking your inverter, this is used at your own risk.
If i can do it i am sure you can.

Remote Panel Firmware Upgrade SOP20190819.pdf Remote Panel_Reflash_MCU(02.61).rar VMIII reflash_ver41.16.7z