What should I do if my phone doesn't work with my Navigo Liberté + contract?

Updated on Jul 29 2025

If you notice a malfunction of your phone, go to your Île-de-France Mobilités application, In the "Purchase" menu, under the heading "Contact us":

Choose "Tickets loaded on my phone",
Then "I'm having trouble validating",
And finally, "I have never been able to validate with my phone and I have a Navigo Liberté + pass".