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Author Topic: Growatt SP2000 Firmware and also BMS Error  (Read 345 times)
Mike123
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« on: September 24, 2017, 07:13:25 PM »

Hi

Has anyone had experience upgrading the firmware on the SP2000? By the way if you haven't tried, then DON'T!! AFAI(now)K all hardware builds of the SP2000 can do Forced Discharge Mode, so there is no reason to upgrade the firmware anyways

I appear to have "bricked" a unit, as it refuses to Erase Flash when uploading the .hex file, and now the display is just a black block on line 1, and it doesn't charge or discharge. Does anyone have any solutions? Growatt are going to come and look at it anyway, but if I can fix then I'd prefer to do so. The other issue is that not all firmware files are compatible with the different build levels of the SP2000, there are at least 3 different firmware builds that I know of

Also has anyone seen a BMS Error 024? What does it mean and is there anyway to fix that? It appears to be the battery itself, rather than the charger
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