Same problem here.
I contacted the seller and say to me that i need to change the communication board.
in my inverter the comm board don't have usd input only ethernet
i will try to use usd to ethernet, if not working i will wait to receive the new board
https://www.aliexpress.com/item/1005004678469357.html?spm=a2g0o.order_list.0.0.21ef1802YfWLsK
i buy it from here
charge me only for DHL express shipping
Tne inverter works only one month, so another 11 months in quarantine
Seller sent me the software and instructions via email.
i can forward to you the email.
sent me email ro yiannossavva@hotmail.com and i will reply you
if you have 3 inverter with f90 error you have to buy only one hardware.
i do it with my inverter and now works fine
after software update you...
Hello
I buy an extra lcd display to connect it (parallel) with my 8kw axpert inverter.
Everything work fine until i connect the parallel display with RJ45 cable
I get error 32 (in the main lcd display on the inverter)
The parallel display don’t show anything, the inverter continue to work fine...