Yeahbut...you think they are going to get a cell signal from inside the airframe, out over the water?
I seriously doubt it. I can't even get one half the time when I'm on the taxiway in Atlanta!
This ain't the USA we are talking about, it's the third world.
I'll bet it's in the jungle, in a lot of little pieces, far from where they are looking right now. Nobody saw it go in because it was 2am, and until some farmer stumbles across the wreckage, they'll be looking for a long, long time.
Or it might have gone into the water, with a very small or no debris field if it stayed mostly intact.