{"id":26888,"date":"2026-11-13T13:35:47","date_gmt":"2026-11-13T13:35:47","guid":{"rendered":"https:\/\/windowsreport.com\/fr\/?p=26888"},"modified":"2026-11-13T13:49:40","modified_gmt":"2026-11-13T13:49:40","slug":"lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/fr\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\/","title":{"rendered":"L\u2019application AT&T ne fonctionne pas ? 7 fa\u00e7ons simples d\u2019y rem\u00e9dier"},"content":{"rendered":"\n

Si l\u2019application AT&T ne fonctionne pas, le probl\u00e8me peut provenir d\u2019une application obsol\u00e8te, d\u2019un cache corrompu, de probl\u00e8mes de r\u00e9seau ou d\u2019identifiants incorrects. Vous pouvez g\u00e9n\u00e9ralement le r\u00e9soudre en red\u00e9marrant l\u2019application, en v\u00e9rifiant votre connexion, en mettant \u00e0 jour l\u2019application ou en la r\u00e9installant.<\/p>\n\n\n\n

Comment r\u00e9parer l\u2019application AT&T qui ne fonctionne pas ?<\/h2>\n\n\n\n

1. Forcer la fermeture et rouvrir l\u2019application AT&T<\/h3>\n\n\n\n

Si l\u2019application AT&T se fige, plante ou reste bloqu\u00e9e sur l\u2019\u00e9cran de chargement, fermez-la compl\u00e8tement puis rouvrez-la.<\/p>\n\n\n\n

Sur Android :<\/strong><\/p>\n\n\n

\n\n\n

    \n
  1. Ouvrez les Param\u00e8tres<\/strong>.<\/li>\n\n\n\n
  2. S\u00e9lectionnez Applications<\/strong> puis recherchez AT&T<\/strong>.<\/li>\n\n\n\n
  3. Appuyez sur Forcer l\u2019arr\u00eat<\/strong>.
    \"\"<\/li>\n\n\n\n
  4. Rouvrez l\u2019application et v\u00e9rifiez si elle fonctionne.<\/li>\n<\/ol>\n\n\n\n

    Sur iPhone :<\/strong><\/p>\n\n\n

    \n\n\n

      \n
    1. Balayez vers le haut depuis le bas de l\u2019\u00e9cran et faites une pause, ou double-cliquez sur le bouton Home des mod\u00e8les plus anciens.<\/li>\n\n\n\n
    2. Recherchez l\u2019application AT&T.<\/li>\n\n\n\n
    3. Balayez vers le haut sur son aper\u00e7u pour la fermer.<\/li>\n\n\n\n
    4. Ouvrez \u00e0 nouveau l\u2019application.<\/li>\n<\/ol>\n\n\n\n

      Si le probl\u00e8me persiste, red\u00e9marrez votre t\u00e9l\u00e9phone.<\/p>\n\n\n\n

      2. V\u00e9rifier votre connexion Internet<\/h3>\n\n\n\n

      L\u2019application AT&T n\u00e9cessite une connexion Internet fonctionnelle pour charger les informations du compte, les d\u00e9tails de facturation et d\u2019autres services.<\/p>\n\n\n

      \n\n\n

        \n
      1. Ouvrez le navigateur de votre t\u00e9l\u00e9phone et consultez un site Web.<\/li>\n\n\n\n
      2. Passez du Wi-Fi aux donn\u00e9es mobiles, ou inversement.
        \"\"<\/li>\n\n\n\n
      3. Activez le Mode Avion<\/strong> pendant 10 secondes, puis d\u00e9sactivez-le.<\/li>\n\n\n\n
      4. D\u00e9sactivez temporairement votre VPN si vous en utilisez un.<\/li>\n\n\n\n
      5. Rouvrez l\u2019application AT&T.<\/li>\n<\/ol>\n\n\n\n

        Si l\u2019application fonctionne sur un r\u00e9seau mais pas sur un autre, d\u00e9pannez la connexion d\u00e9faillante.<\/p>\n\n\n\n

        3. Mettre \u00e0 jour l\u2019application AT&T<\/h3>\n\n\n\n

        Une version obsol\u00e8te de l\u2019application AT&T peut provoquer des plantages, des probl\u00e8mes de connexion et des erreurs de chargement.<\/p>\n\n\n\n

        Sur Android :<\/strong><\/p>\n\n\n

        \n\n\n

          \n
        1. Ouvrez le Google Play Store<\/strong>.<\/li>\n\n\n\n
        2. Recherchez AT&T<\/strong>.<\/li>\n\n\n\n
        3. Appuyez sur Mettre \u00e0 jour<\/strong> si une mise \u00e0 jour est disponible.<\/li>\n\n\n\n
        4. Rouvrez l\u2019application.<\/li>\n<\/ol>\n\n\n\n

          Sur iPhone :<\/strong><\/p>\n\n\n\n

            \n
          1. Ouvrez l\u2019App Store<\/strong>.<\/li>\n\n\n\n
          2. Appuyez sur votre photo de profil.<\/li>\n\n\n\n
          3. Recherchez l\u2019application AT&T dans les mises \u00e0 jour disponibles.<\/li>\n\n\n\n
          4. Appuyez sur Mettre \u00e0 jour<\/strong>.<\/li>\n<\/ol>\n\n\n\n

            V\u00e9rifiez \u00e9galement les mises \u00e0 jour syst\u00e8me Android ou iOS si l\u2019application continue de mal fonctionner.<\/p>\n\n\n\n

            4. Vider le cache de l\u2019application AT&T<\/h3>\n\n\n\n

            Des fichiers temporaires corrompus peuvent emp\u00eacher l\u2019application de s\u2019ouvrir ou de charger correctement les informations du compte.<\/p>\n\n\n\n

            Sur Android :<\/strong><\/p>\n\n\n

            \n

              \n
            1. Ouvrez les Param\u00e8tres<\/strong>.<\/li>\n\n\n\n
            2. Acc\u00e9dez \u00e0 Applications > AT&T<\/strong>.<\/li>\n\n\n\n
            3. S\u00e9lectionnez Stockage<\/strong> ou Stockage et cache<\/strong>.<\/li>\n\n\n\n
            4. Appuyez sur Vider le cache<\/strong>.
              \"vider<\/li>\n\n\n\n
            5. Red\u00e9marrez l\u2019application.<\/li>\n<\/ol>\n\n\n\n

              <\/p>\n\n\n\n

              Si vider le cache ne suffit pas, appuyez sur Effacer le stockage<\/strong> ou Effacer les donn\u00e9es<\/strong>. Cela r\u00e9initialise l\u2019application et supprime ses informations stock\u00e9es localement, ce qui vous oblige \u00e0 vous reconnecter.<\/p>\n\n\n\n

              Sur iPhone :<\/strong><\/p>\n\n\n\n

              iOS ne propose pas d\u2019option distincte de suppression du cache pour la plupart des applications. Vous pouvez supprimer et r\u00e9installer l\u2019application AT&T pour effacer ses donn\u00e9es locales.<\/p>\n\n\n\n

              5. R\u00e9soudre les probl\u00e8mes de connexion de l\u2019application AT&T<\/h3>\n\n\n\n

              Si l\u2019application AT&T ne vous permet pas de vous connecter, v\u00e9rifiez les identifiants de votre compte.<\/p>\n\n\n\n

                \n
              1. Ouvrez l\u2019application AT&T.<\/li>\n\n\n\n
              2. Saisissez l\u2019identifiant utilisateur et le mot de passe AT&T corrects.<\/li>\n\n\n\n
              3. Supprimez toute information de connexion obsol\u00e8te enregistr\u00e9e sur votre t\u00e9l\u00e9phone.<\/li>\n\n\n\n
              4. Utilisez l\u2019option de r\u00e9cup\u00e9ration du mot de passe si vous ne pouvez pas acc\u00e9der \u00e0 votre compte.<\/li>\n\n\n\n
              5. Reconnectez-vous \u00e0 l\u2019aide de vos identifiants mis \u00e0 jour.<\/li>\n<\/ol>\n\n\n\n

                Si vous g\u00e9rez plusieurs comptes AT&T, assurez-vous d\u2019utiliser l\u2019identifiant associ\u00e9 au bon compte.<\/p>\n\n\n\n

                Vous pouvez \u00e9galement consulter le guide officiel de r\u00e9solution des probl\u00e8mes de connexion AT&T<\/a> pour r\u00e9cup\u00e9rer votre compte.<\/p>\n\n\n\n

                6. V\u00e9rifier si AT&T subit une panne<\/h3>\n\n\n\n

                Parfois, les probl\u00e8mes de service AT&T emp\u00eachent l\u2019application de charger des informations ou d\u2019effectuer certaines demandes.<\/p>\n\n\n

                \n\n\n

                  \n
                1. Rendez-vous sur le v\u00e9rificateur de pannes AT&T<\/a>.<\/li>\n\n\n\n
                2. Saisissez les informations de compte ou de localisation demand\u00e9es.
                  \"\"<\/li>\n\n\n\n
                3. Recherchez d\u2019\u00e9ventuelles perturbations de service signal\u00e9es.<\/li>\n\n\n\n
                4. Suivez les instructions d\u2019AT&T si une panne affecte votre service.<\/li>\n<\/ol>\n\n\n\n

                  <\/p>\n\n\n\n

                  Une panne du r\u00e9seau sans fil ou d\u2019Internet ne signifie pas n\u00e9cessairement que l\u2019application elle-m\u00eame est en panne. Si AT&T signale une panne dans votre zone, v\u00e9rifiez si l\u2019application fonctionne via une autre connexion Internet.<\/p>\n\n\n\n

                  7. D\u00e9sinstaller et r\u00e9installer l\u2019application AT&T<\/h3>\n\n\n\n

                  Si l\u2019application AT&T ne cesse de planter, affiche un \u00e9cran vide ou refuse de s\u2019ouvrir, sa r\u00e9installation peut r\u00e9soudre les fichiers d\u2019application corrompus.<\/p>\n\n\n\n

                    \n
                  1. Recherchez l\u2019application AT&T sur votre t\u00e9l\u00e9phone.<\/li>\n\n\n\n
                  2. Appuyez longuement sur son ic\u00f4ne.<\/li>\n\n\n\n
                  3. S\u00e9lectionnez D\u00e9sinstaller<\/strong> sur Android ou Supprimer l\u2019app > Supprimer l\u2019app<\/strong> sur iPhone.<\/li>\n\n\n\n
                  4. Red\u00e9marrez votre t\u00e9l\u00e9phone.<\/li>\n\n\n\n
                  5. Ouvrez le Google Play Store<\/strong> ou l\u2019App Store<\/strong>.<\/li>\n\n\n\n
                  6. T\u00e9l\u00e9chargez et installez la derni\u00e8re version de l\u2019application AT&T.<\/li>\n\n\n\n
                  7. Connectez-vous et v\u00e9rifiez si elle fonctionne.<\/li>\n<\/ol>\n\n\n\n

                    AT&T recommande \u00e9galement de r\u00e9installer son application lorsque le red\u00e9marrage de votre appareil ne r\u00e9sout pas le probl\u00e8me.<\/p>\n\n\n\n

                    L\u2019application AT&T peut cesser de fonctionner en raison de probl\u00e8mes logiciels temporaires, de versions obsol\u00e8tes de l\u2019application, de fichiers de cache corrompus, de connexions Internet instables ou d\u2019erreurs d\u2019authentification de compte. Les probl\u00e8mes c\u00f4t\u00e9 serveur peuvent \u00e9galement affecter la connexion et les fonctionnalit\u00e9s du compte.<\/p>\n\n

                    Si vous rencontrez d\u2019autres probl\u00e8mes de connectivit\u00e9, d\u00e9couvrez comment r\u00e9soudre les probl\u00e8mes de Wi-Fi AT&T<\/a> ou r\u00e9gler les probl\u00e8mes IPTV sur AT&T. Si votre connexion devient anormalement lente, vous pouvez \u00e9galement examiner la limitation de d\u00e9bit AT&T et des d\u00e9bits de donn\u00e9es lents.<\/p>\n\n\n\n

                    FAQ<\/h3>\n\n\n\n

                    Pourquoi l\u2019application AT&T ne cesse-t-elle de planter ?<\/h4>\n\n\n\n

                    L\u2019application AT&T peut planter en raison de fichiers temporaires corrompus, d\u2019une version obsol\u00e8te ou de probl\u00e8mes de compatibilit\u00e9 avec le syst\u00e8me d\u2019exploitation. Mettez \u00e0 jour l\u2019application, videz son cache et red\u00e9marrez votre t\u00e9l\u00e9phone.<\/p>\n\n\n\n

                    Pourquoi l\u2019application AT&T reste-t-elle bloqu\u00e9e sur l\u2019\u00e9cran de chargement ?<\/h4>\n\n\n\n

                    Une connexion Internet faible, une erreur temporaire de l\u2019application ou un probl\u00e8me de serveur peuvent laisser l\u2019application AT&T bloqu\u00e9e lors du chargement. Changez de r\u00e9seau, forcez la fermeture de l\u2019application et r\u00e9essayez.<\/p>\n\n\n\n

                    Pourquoi ne puis-je pas me connecter \u00e0 l\u2019application AT&T ?<\/h4>\n\n\n\n

                    Des identifiants incorrects, des mots de passe enregistr\u00e9s obsol\u00e8tes ou des probl\u00e8mes d\u2019authentification peuvent emp\u00eacher la connexion. R\u00e9initialisez votre mot de passe si n\u00e9cessaire et v\u00e9rifiez que vous utilisez le bon identifiant de compte AT&T.<\/p>\n\n\n\n

                    Puis-je acc\u00e9der \u00e0 mon compte AT&T sans l\u2019application ?<\/h4>\n\n\n\n

                    Oui. Vous pouvez vous connecter sur le site Web d\u2019AT&T pour g\u00e9rer les fonctionnalit\u00e9s de compte prises en charge, consulter vos factures, effectuer des paiements et examiner vos services.<\/p>\n","protected":false},"excerpt":{"rendered":"

                    Si l\u2019application AT&T ne fonctionne pas, le probl\u00e8me peut provenir d\u2019une application obsol\u00e8te, d\u2019un cache corrompu, de probl\u00e8mes de r\u00e9seau ou d\u2019identifiants incorrects. Vous pouvez g\u00e9n\u00e9ralement le r\u00e9soudre en red\u00e9marrant l\u2019application, en v\u00e9rifiant votre connexion, en mettant \u00e0 jour l\u2019application ou en la r\u00e9installant. Comment r\u00e9parer l\u2019application AT&T qui ne fonctionne pas ? 1. Forcer […]<\/p>\n","protected":false},"author":49,"featured_media":26889,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[10898],"tags":[],"work":[],"class_list":["post-26888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fix"],"acf":[],"yoast_head":"\nL\u2019application AT&T ne fonctionne pas ? 7 fa\u00e7ons simples d\u2019y rem\u00e9dier<\/title>\n<meta name=\"description\" content=\"L\u2019application AT&T ne fonctionne pas ? Corrigez les plantages, les erreurs de connexion et les probl\u00e8mes de chargement sur iPhone et Android avec ces 7 solutions faciles.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/windowsreport.com\/fr\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019application AT&T ne fonctionne pas ? 7 fa\u00e7ons simples d\u2019y rem\u00e9dier\" \/>\n<meta property=\"og:description\" content=\"L\u2019application AT&T ne fonctionne pas ? Corrigez les plantages, les erreurs de connexion et les probl\u00e8mes de chargement sur iPhone et Android avec ces 7 solutions faciles.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/windowsreport.com\/fr\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\/\" \/>\n<meta property=\"og:site_name\" content=\"WindowsReport FR (French)\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-13T13:35:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-13T13:49:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2026\/11\/att-app-not-working.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"801\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Milan Stanojevic\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@MilanStanojev17\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Milan Stanojevic\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/\"},\"author\":{\"name\":\"Milan Stanojevic\",\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/#\\\/schema\\\/person\\\/e3910b02e4592db47a0eb303765a3a25\"},\"headline\":\"L\u2019application AT&T ne fonctionne pas ? 7 fa\u00e7ons simples d\u2019y rem\u00e9dier\",\"datePublished\":\"2026-11-13T13:35:47+00:00\",\"dateModified\":\"2026-11-13T13:49:40+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/\"},\"wordCount\":1245,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/wp-content\\\/uploads\\\/sites\\\/3\\\/2026\\\/11\\\/att-app-not-working.jpg\",\"articleSection\":[\"D\u00e9pannage\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/#respond\"]}],\"copyrightYear\":\"2026\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/\",\"url\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/\",\"name\":\"L\u2019application AT&T ne fonctionne pas ? 7 fa\u00e7ons simples d\u2019y rem\u00e9dier\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/lapplication-att-ne-fonctionne-pas-7-solutions-faciles-pour-y-remedier\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/windowsreport.com\\\/fr\\\/wp-content\\\/uploads\\\/sites\\\/3\\\/2026\\\/11\\\/att-app-not-working.jpg\",\"datePublished\":\"2026-11-13T13:35:47+00:00\",\"dateModified\":\"2026-11-13T13:49:40+00:00\",\"description\":\"L\u2019application AT&T ne fonctionne pas ? 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