En quelques clicques voici un autre article en traitant :
http://ezinearticles...Tips&id=2248599
Voici la partie qui nous interesse :
Fixing the Xbox e71 is quite tricky. Firstly, you could try completely resetting your Xbox 360. To do this, enter the dashboard, go to the right-most column, go and press "Initial Set Up" then follow the instructions on screen.
If you cannot access this screen due to the e71 error on your Xbox 360, you can try holding the "Y" button on your controller as you switch the console on. This will enter the same process, and restore default factory settings. However, there is still a chance that this might not work, and that you could be stranded with the e71 code.
en gros, si tu accedes au dashboard, reinitialise la console, sinon appuie sur Y en allumant la console et reinitialise là.
Si ca fonctionne toujours pas :
If your Xbox 360 still isn't working, click the link to learn more about how to fix "Xbox360 e71 errors"(*). There are other methods available which can have you gaming again quickly- they just require a bit more in-depth instruction to get your head around the process. Don't despair; you can fix Xbox e71 codes, and you can do it today.
(*) lien retiré, site "louche"
En gros, ca peut se fixer facilement, il faut reset ton dashboard. Cela semble provenir d'une mise à jour du dashboard avec un flash mal effectué...
Dans ton post tu ne precises pas si tu es sur une console flashée ou non, mais je presume que oui...
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H.
Ce message a été modifié par Hellfic - 22 novembre 2010 - 15:15.