lopez wrote: ↑Thu, 03 May 2018, 10:38
coulomb wrote: ↑Sat, 28 Apr 2018, 15:46
Unfortunately, if I'm right, you'll have to take it up with your supplier, and ask pointed questions about the legality of the firmware. [Edit: ...]
[Edit: ... See also Attention Firmware Updaters
I finally got a reply from MPPSolar, so error 90 appears to have something to do with using fake hardware or fake firmware..:
Peggy at MPP Solar wrote:Hello Sir
1.Please provide us a serial label photo of the 4048MS inverter.
2.Please provide us the U1 version screen-shot. Do you update any firmware?
Coulomb's initial advice (above) was bad advice. It was apparently based on the mistaken assumption that you had bought one of the Mainland Chinese copies that Peggy mentions. In fact, the only thing you needed to do was update to 73.00b, as mentioned in the Attention Firmware Updaters
post, where error 90 was first mentioned in this thread. Or you could have gone back to any version prior to 73.00.
Error 90 has nothing to do with fake firmware and everything to do with fake (or old) hardware.
There are (at least) two ways you can get an error 90. In both cases, the error won't appear until 60 operating-days after the condition has been met.
1. You buy one of the Mainland Chinese copies/clones of the inverter and it (illegally) comes with Voltronics main firmware 73.00.
2. You have an old but legitimate Voltronics inverter (e.g. an old PIP-4048MS) and you update it to 73.00 (or 73.00a).
Hence Peggy's correspondingly-numbered questions.
Apparently Voltronics did not expect owners of older inverters to update to 73.00. Presumably MPP Solar is not aware of our patched firmware that solves this problem (among other problems that we have tried to bring to their, or Voltronics, attention) and so I expect that once they are satisfied, by your serial-number label photo, that your hardware is legitimate, they will advise you to return your inverter's firmware to a version prior to 73.00.
Alternatively, you could tell them that yes, the problem was apparently caused by updating to main firmware 73.00. But it is fixed now, because you have reflashed with Coulomb and Weber's patched firmware 73.00b. Or if you want to keep your life simple, you could just say it is fixed now because you have reflashed with "other firmware".
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).