My Samsung Galaxy S5 has a bad problem now with signal bouncing anywhere from NO 3G to 3G 1-5 bars and 4G 1-5 bars constantly! Previously had v4.2.3(?) on it and on September 23 the new KitKat 4.4.4 was pushed to my phone unbeknownst to me (I read that a popup message about the OTA SW Push should have occured but it didn't on my phone). I've noticed the weakness in signal for over 3 weeks and been to the local Verizon corporate Store a few times to swap out to a new SIM card (twice) and pulled battery and they reset the tower connection (reprovisioned) twice and so did the techs from the Customer Tech support hotline. And even tonight, I just discovered the update occured over a month ago on September 23 and none of the Verizon people knew about it!!!