I replaced my S1000+,A2,Z15-GH4(HD) - LB1  system to S1000+, A2,Z15-Gh4(HD),LB2 system.
i cannot do GH4 gimbal pitch control.
In A2 FC, i must do channel mapping about gimbal pitch control ?
i cannot find  channel for gimbal pitch control in manual(1 person remote control)
If i need channel map, in LB, what channel number is associated with gimbal pitch control?
one strange point is that i cannot see zenmuse setting channel in A2 software.  
Previous LB1 setting require  Zenmuse GCU can port - Can1 line connection. (LB2 is can2 line connection)
this condition show zenmuse channel setting component in A2 software
In LB2 DJI video, it only show gear channel, go home channel setting.
all video output & 1234 channel etc is well working.
all firmware (zenmuse GH4 firmware,LB2 air unit, A2 all component firmware is newest version) is updated

p.s) 1. in ipad, galaxy tab,  90 degree pitch control is possible.
      2. LB air unit fan sound is very loud than LB1 air unit fan
          other people also feel loud fan sound?

This problem caused by using A2 software old version 1.2
i resolved this problem by software upgrade & A2 firmware update.
In old A2 assistant software, most recent version firmware not seem to be downloaded

santorini95 Posted at 2016-7-13 19:50
This problem caused by using A2 software old version 1.2
i resolved this problem by software upgrade ...

Good to hear you got yourself up and running, thank you for the update.