Note 4 UK Unlocked on O2. SM-N910F Yesterday my S Pen started acting up. As soon as you pull it from it's slot/hideaway, the 4 little icons turn up as supposed to. However, as soon as the pointer on S Pen gets anywhere near the icons, the phone turns off. I turned it off, restarted and even did a factory reset in case something was in system. Having just reloaded all my bits and bobs, the S Pen is still turning off the phone. Any ideas please ??