The OnePlus X is now available without an invite
 

OnePlus is now selling its "X" smartphone to anyone that wants it. The budget Android device had previously been part of OnePlus' much maligned invite-only policy, which makes buyers wait for a code before purchasing. (As if buying a $249 phone makes...

http://www.engadget.com/2016/01/28/oneplus-x-no-invite/