Roku setup

[Goatman4]

Just received refurbished streaming stick.  Screen says to push button on back of remote underneath right battery (battery cover removed). My remote has no button on the back to push.  Cannot activate.  QR code on screen takes me to Roku Camera.  I do not have a Roku camera.  How can I activate this streaming stick?

[renojim]

Voice remotes without a pairing button use a simultaneous press and hold of the Home and Back buttons at the top of the remote to put the remote into pairing mode, but there's never been a Roku device with that model number.  Is there another model number written on the stick?  Maybe it's 3820?