TheSteffen

Hi, i got a MCU Firmware on the same Day, a manual and a very good description how to cutomize the Original Cable in case the update Fails. The MCU is now updated from U2:2212 to U2:2215 and the E61 Error is history. Over all a perfect Service for me from SP24 ! The Firmware can not be Posted here, cause there is a risk that you have a different BMS inside another Axpert MAX II 10k-48. This worldwide chip issue is a mess ! Devices getting different Chips inside... and sometimes incompatible, had also problems with my Pylontech batteries cause of a "newer" (other) BMS they are using now for the current batteries.

I´ll get another Firmware for Axpert MAX II 10k-48 from my supplier and will let you know if it works. Btw. solarpower24.it has a fantastic Service !

Hi, i have no Idea anymore. Had aSP24 Primo MKS IV 5.6Kw 48 Volt 5600-48 connected corretly with a Pylon Cable to my Pylon Stack. Everything worked fine. Now i bought a Axpert MAX II 10k-48 ... the Manual was even the same incl. Pin Settings on BMS Port, so it was a plug and play xchange. BUT i only get E61 Error... rebootet everything hundert Times checked all settings again. Made anoter Cable as shown here in the Post 3 - 8 / 5 -7 no success.. only E61 after a few Minutes... no Ideas anymore