Because your device is new, I would suggest that you contact the retailer you purchased the item from, and ask their advice.
Remote access can have its good and bad, depending on how and where that service comes from. My ISP provides remote access, which I have used with success, but having said that, I was in control and understood what was happening.
I have just used Google to find a few things out about OnePlus and their device, including possible downloads etc. Might pay to have a quick look at Google!