What's OnePlus One? ''Two''. Not anymore. Chinese upstart OnePlus aims to change everything you know about smartphones, and possibly arithmetic, with the OnePlus One. But is this smartphone more than the sum of its parts? Join us as we find out, teardown style. [ … ] on Facebook, [http://www.facebook.com/iFixit|Facebook|new_window=true], following us on Twitter, [https://twitter.com/iFixit|Twitter|new_window=true], and glazing over our Instagram. [http://instagram.com/ifixit|Instagram|new_window=true].