AXPERT MAX-8000 INVERTER ERROR F90

[Enrico nc]

I have this inverter that has just been returned by my client because of a F90 error code. 
From what my supplier says I need to update the firmwire. 
Problem is, the firmwire that they have sent me is not the correct one after several researches I have made in the internet. 

I have read several articles on the website, but all the articles have received answers with the correct firmwire, but they are now unavailable. 
I there any chance someone could please send it to me please? 
I have attached a photo of the serial number of the inverter and the references, if it can help someone solve this error code. 

Or if anyone of you has any other informations that could help me get this inverter back on track it would be very helpfull. If there is other informations needed please feel free to ask. 
 

Thank you in advance to all those who will take some time to read.
 

[Coulomb]

5 hours ago, Enrico nc said:

I have this inverter that has just been returned by my client because of a F90 error code. 

Ah. This is awkward. Fault code 90 means basically "clone detected". Voltronic got tired of having the clone makers undercut their products while using Voltronics' intellectual property (the firmware),without paying for it. From the label, I can immediately see that this is a clone, not a rebranded Voltronic.

So the firmware is doing what it's supposed to, which is to stop working after 60 days runtime if the firmware detects that it's not operating in a genuine machine.

Unfortunately, updating the firmware will not solve the problem; there are values stored in EEPROM that won't change with the firmware update. At best, you'll get another 60 days from it, then fault code 90 will reappear. This is the downside of purchasing a clone. I do wish that Voltronic would make it easier to spot clones, however. Many people, probably yourself included, would buy these without realising the situation.

The right way to get this resolved is to have your supplier provide proper firmware that the manufacturer has written and is supporting. Unfortunately, the chances of this are small.

There are other ways of resolving this, but I don't want to discuss them as I don't want to be seen to be supporting clone makers.

Edit: BTW, the brand "MPPT Solar" is deliberately made to sound like a legitimate brand (in this case, MPPSolar). I can't find it now, but MPPSolar had a web page warning against this clone brand.

Edited August 20 by Coulomb

[Ahmad_k]

I have the exact same model which have F90 error, I downloaded this firmware and it worked like a charm until the client connect it to the internet then F90 appeared again. So in order to make it work again the client must NOT connect it to the internet after firmware modification

 

[Coulomb]

1 hour ago, Ahmad_k said:

I downloaded this firmware and it worked like a charm

Ah! I'd forgotten that Georg594 had done that F90 patch. That should work for that specific model (Max E 8kW '2809 non-Twin), but no other (not 7.2, 10, or 11kW; not the II models, not the '28066 models, and not the Twin or Duo models). And of course, that firmware won't have any updates that have happened since July 2022.