Iam using 7+ for the past six weeks, after the June security update the phone app is not working properly. Many times after selecting the required number and pressing the call button it comes back to contacts page and unable to place a call. I can do a call only after restarting the phone. It's very annoying. Even sub 10k phones are good at calling. But don't know what happened to brand like Nokia. Is anyone facing the same problem?