My phone Nokia 8, I ve bought it about 2 months. It's radom restart ( turned off the phone while running. I ve checked it's related to use on camera app) it takes 20- 30m for restart. I had clear Data from app and sent it to service center for repairing. However, the same error happened again after a week when I took it back. The error is not yet fixed by service center.
So what I need to do on my phone ?