Galaxy Note Edge restarting / switching off while battery is still charged, and generally faulty.

[DMATTAO84]

I'm not sure if this is a chip-set error, or a cache issue, but when using my Note Edge it will shut down or restart even when above 50% battery. I am two months out from the end of my contract, so I don't want to go through the hassle of having the phone sent back to be looked at / repaired. Does anybody know if this is a common issue with this phone, or what causes it. Also the camera has never focused without pointing it at the sun, or close to a bright light. It will focus without doing this, but takes over 30 seconds to do. Furthermore i have to install a third part app to be able to use headphones - the phone keeps deciding that they are either plugged in when they are not, or not plugged in when they are. Are these other common issue with this device?

My phone is a replacement for my original phone that had headphone jacks that wouldn't accept volume commands from the default or any other headphone!

I feel like there may have been a chip-set issue with the entire batch. is this a possibility?

Thanks.