Firmware for communicating with EG4 LL v1

I have the same configuration, you use the multipack firmware.  Also you need a special cable, connecting a standard cat5/6 cable between the LL-S and the V1's will cause the LL-S to trip its fault protection as it doesn't expect anything on pin's 1-6.  I took a normal cat5 cable, cut it open and cut 1-6 leaving just 7/8 intact and everything works from that point.

i modified a cat cable to only have  pins 7 and 8 now the breaker doesn't trip on the new batteries.  I have this cable connected from the 3rd EG4LL-S to the top EG4LL-V1 battery bank

I applied the EG4 Multipack communication firmware v1 to the 6 eg4 LL v1 bank, i applied the v2 to the eg4 LL S.  When I do the EG4 LL S firmware it doesn't communicate with my 12000xp. (currently set to lithium, 0 standard, firmware 0405)

the orange cat5 going from CAN on a EG4 LL S going to bat com on the inverter. 

Check the battery communication setting on the LL-S.  Per EG4 doc (A BMS Setup Guide for EG4 Batteries and Inverters) Set your DIP switches to ID-64, power on the BMS through the battery’s LCD screen, and navigate to protocol settings. Select “CAN protocol setting” and then “P06-LUX.” 

Basically, reboot the battery BMS after setting the dip switch's to 64, then hold down the return button on the LCD for ~5 seconds to enter that menu.  Let me know if that works.

I updated the 3 eg4 LL S to the mulitpack firmware version went from Z02T18 (factory version) to Z02T12
i changed each of the battery to use the P06-Lux protocol.

the inverter is set to lithium / 6.lux (also tested 0.standard )

the inverter runs and after the update without warnings but now the batteries are missing from the monitoring app, it still shows the percentage but the 3 battery stats are gone and the amp hours on the right are 0

i did a complete shut down of batteries and inverter, turned on the master battery then remaining batteries in order, then the inverter