I would like to disable 3D GPS fix in the module - anyway, mostly as per GSA messages we get 2D fix and whenever we get 3D fix, it will be for couple of points (2-3) and it will cause the system to loose the fix and reacquire signals again
Sorry,the 3D positioning can not disable,you can just turn off the whole GNSS function.
Whether the module is 3D positioning is judged by the Qualcomm automatic algorithm, when the signal is poor and the accuracy is poor, it is automatically 2D positioning, and when the signal is good, it is 3D