Yesterday am I noticed my phone as searching. I finally got it back after multiple reboots and a network settings reset. It went down again by afternoon and I popped out the sim and replaced it. VZW told me I need to replace the sim. I went to the store and they told me there was an antenna issue with the 6 and 6s. She replaced it though and tried to sell me a phone and get an insurance replacement and it kept searching when she restarted it. I restarted it and it’s fine. I searched and hadn’t seen a known issue. I got a battery replacement so I thought that covered any know. Issues. I’m hanging on and might get an 8 this Christmas.