just delayed a trial till source arrival..
I thought you had already tried.
remember that I'm also could be wrong
You have no idea what syntax you could try? Less risk if you tell me that you rather do my own thing.
There should be AT commands set for qualcomm basebands. One of the gobi series is used here (there was a service manual for our device containing this info but I forgot where). I've no idea how the syntax would look like.