How your phone could unlock thousands of bikesThis video can not be playedTo play this video you need to enable JavaScript in your browser.How your phone could unlock thousands of bikesCloseYou can just drop them where you stop them.A film for BBC World Hacks by Alvaro A Ricciardelli. Like, Engage, Share.Show morePublished22 March 2017SectionBBC NewsSubsectionMagazineSharecloseShare pageCopy linkAbout sharing