Unfortunatley I experienced some problems with my iPhone 6s in IOS10. A week ago my iPhone randomly bricked when downloading an app.. it would'nt start up and did'nt came along the apple logo. I made a backup a day before so there was no real problem as I just recovered the iPhone and configurated it again with the back up. Yesterday the same problem occured downloading an (different) app, again bricked. My knowledge about bricked iPhones is quite non-existing. Therefore, could this be a problem in de backup and should I reinstall the iPhone as new, or is this a reason to visit the shop where I purchased the iPhone?