Gremsy Pixy WE not working with 4.3.5

I have a new Gremsy Pixy WE with firmware 7.7.3 which is not working with arducopter 4.3.5. Everything is set up according to this page
https://ardupilot.org/copter/docs/common-gremsy-pixyu-gimbal.html
Gremsy serial 2 is connected to Telem 2 port on Cube orange (Tx-Rx, Rx-Tx,GND-GND, Vcc wire is not connected).
I get “mount not healthy” error message (repeatedly).
Gimbal works well (doing the stabilizing work with Wiris Enterprise camera); when disconnected from Cube its status LED is green, when connected to Cube it is blue. Log file is here:

I have the same issue with Gremsy PIXY WE with firmware 7.7.3 and arducopter 4.3.4.
I have checked connection properly but "mount not healthy " message appears .

Hi, I got the same problem. So, I’ve changed the parameter MNT2_TYPE = 4 " for SToRM32" after rebooting the autopilot; the gimbal worked.( I’m working with Gremsy T3V3)

The problem is solved . I contacted Gremsy support and they gave a new firmware which works with arducopter 4.3 and above .

@sahil_sajid,

Ah, excellent! thanks for the feedback.

Could you please post the new firmware you received.
Gremsy is still listing the 7.7.3 f/w here DOWNLOAD - GREMSY PRODUCT SUPPORT