I haven't tried a phone call.
I do update the modules in the andboot folder. I rename them to modules-(kernel.version).tar.gz taking off the autobuild info of the front. This might be why my gps never locks on anymore. But my wifi works fine. Usually that fails each time the modules don't load.
I reverted back to the older nbh and kept the modules. Screen works as before as always on.
I figure I am doing something wrong. Might just delete it all off my card and start again. I have about 6gb of music on it which I would play more often if bluetooth or headphones worked. I know it is on the list. So no hurry