ive tried factory resets,battery pulls advanced wipes in recovery including software updates etc,seems like compared to my other 7-8 verizon phones older and newer the note 3 is unusable in most areas.but phone gets ok signal with non verizon based sim cards,but other non verizon note 3s work ok with verizon sim in it such as uscellular and sprint note 3s that have been unlocked (3g only).ive tried many new sim cards also
