loveleshsoni2012, Jun 18, 2019 : I am trying to use LinkedIn parallel app but it does not allow me. Everytime I try to login, it says "Unknown Error. Please try again." Have a look at the screenshot below. I am afraid all the parallel app are not working as i read in other similar posts. @OnePlus why would you give this option and not focus if it is working fine or not?? Other phones way below your league has this option and it works awesome. Please fix this issue, I need to use two accounts of LinkedIn. Might as well check other parallel apps too.