birdibird

There is now an original 46.71 on the MPP Solar website:
https://www.mppsolar.com/v3/8048maxmppt/

There is now an original 46.71 on the MPP Solar website:
https://www.mppsolar.com/v3/8048maxmppt/

This is patched firmware version 245.11, based on factory firmware version 45.11 for the Axpert Max E 7.2kW '2809. It implements Georg's MPPT patches, with a minimum MPPT voltage of 120 V (since earlier Georg said that this was the best compromise for machines with no hardware modification). Factory firmware version 45.11 is said to fix some false EEPROM errors; dsp.hex is dated 22/Aug/2022. The premature float bug is fixed, but Fault Code 90 has not been defeated. These patches do not implement Georg's shadow/shading management patches; those are a separate set of patches, and as far as I can tell are fairly specific to a particular number of panels.
Only use this patched firmware on Axpert Max 7.2 kW models with the '2809 processor, i.e. those that come with factory firmware 45.xx or the following specific firmware versions (not any in between): 90.11, 90.19, 90.28.
Firmware update instructions here. Use at your own risk.
My apologies once again for those waiting so long, e.g. @birdibird.
dsp 245.11 patched Max 7.2kW '2809 120V.zip

Yes, this is correct. If you update the display firmware, the newer Pylontechs will be supported.
You will need to double check what the current display firmware is in Watchpower (not on the display itself as only the last 4 digits are shown).
The newest for the King is 02.81 or 102.73 (see the files on this forum) depending on the display hardware.
Flashing the new firmware with the included Rj45 - RS232 cable and a bought RS232 - USB cable is very easy.
It is absolutely worth doing it as the inverter will then know the exact SoC and will not give you random warning 04 when you use a strong load.
 

I guess you mean setting 29 instead of 49?
They didn't change it as you can see above in the US2000 and US5000 manuals.
@VitaliyPlease double check your cable, it should work.
I have recently installed a Axpert King (1) 5K and a US5000 at a friends place and it worked.

I guess you mean setting 29 instead of 49?
They didn't change it as you can see above in the US2000 and US5000 manuals.
@VitaliyPlease double check your cable, it should work.
I have recently installed a Axpert King (1) 5K and a US5000 at a friends place and it worked.

see here:
https://forums.aeva.asn.au/viewtopic.php?p=87767#p87767

If the brackets flash you have succesful bms communication.

If the brackets flash you have succesful bms communication.

Jeff sent me the Force Update tool with instructions and US5000 bin file.

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