{"id":399693,"date":"2025-12-16T11:04:36","date_gmt":"2025-12-16T09:04:36","guid":{"rendered":"https:\/\/www.macobserver.com\/non-categorise\/impossible-de-mettre-a-jour-vers-ios-26-voici-comment-resoudre-le-probleme\/"},"modified":"2025-09-15T13:54:34","modified_gmt":"2025-09-15T17:54:34","slug":"impossible-de-mettre-a-jour-vers-ios-26-voici-comment-resoudre-le-probleme","status":"publish","type":"post","link":"https:\/\/www.macobserver.com\/fr\/guide-pratique\/impossible-de-mettre-a-jour-vers-ios-26-voici-comment-resoudre-le-probleme\/","title":{"rendered":"Impossible de mettre \u00e0 jour vers iOS 26 ? Voici comment r\u00e9soudre le probl\u00e8me"},"content":{"rendered":"\n<p>iOS 26 est officiellement disponible, mais tout le monde ne voit pas la mise \u00e0 jour imm\u00e9diatement. Si votre iPhone refuse d&rsquo;installer la nouvelle version, ne vous inqui\u00e9tez pas, il y a plusieurs raisons \u00e0 cela, et la plupart sont faciles \u00e0 r\u00e9soudre. Examinons ce qu&rsquo;il faut v\u00e9rifier et comment mettre \u00e0 jour votre appareil.  <\/p>\n\n<div class=\"wp-block-yoast-seo-table-of-contents yoast-table-of-contents\"><h2>Table des mati\u00e8res<\/h2><ul><li><a  href=\"#h-1-check-if-your-iphone-supports-ios-26\" data-level=\"2\">1. V\u00e9rifiez si votre iPhone prend en charge iOS 26<\/a><\/li><li><a  href=\"#h-2-make-sure-you-have-enough-storage\" data-level=\"2\">2. Assurez-vous d&rsquo;avoir suffisamment d&rsquo;espace de stockage<\/a><\/li><li><a  href=\"#h-3-restart-your-iphone-and-try-again\" data-level=\"2\">3. Red\u00e9marrez votre iPhone et r\u00e9essayez<\/a><\/li><li><a  href=\"#h-4-check-your-wi-fi-connection\" data-level=\"2\">4. V\u00e9rifiez votre connexion Wi-Fi<\/a><\/li><li><a  href=\"#h-5-update-using-a-computer\" data-level=\"2\">5. Mettez \u00e0 jour \u00e0 l&rsquo;aide d&rsquo;un ordinateur<\/a><\/li><li><a  href=\"#h-6-disable-beta-profiles\" data-level=\"2\">6. D\u00e9sactivez les profils b\u00eata<\/a><\/li><li><a  href=\"#h-7-free-up-system-resources\" data-level=\"2\">7. Lib\u00e9rez les ressources syst\u00e8me<\/a><\/li><li><a  href=\"#h-8-check-apple-s-servers\" data-level=\"2\">8. V\u00e9rifiez les serveurs d&rsquo;Apple<\/a><\/li><li><a  href=\"#h-9-last-resort-reset-network-settings\" data-level=\"2\">9. Dernier recours : r\u00e9initialisez les param\u00e8tres r\u00e9seau<\/a><\/li><li><a  href=\"#h-the-bottom-line\" data-level=\"2\">Conclusion<\/a><\/li><\/ul><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"h-1-check-if-your-iphone-supports-ios-26\">1. V\u00e9rifiez si votre iPhone prend en charge iOS 26<\/h2>\n\n<p>Tous les iPhone ne peuvent pas ex\u00e9cuter iOS 26. Apple abandonne le support des anciens mat\u00e9riels chaque ann\u00e9e. Assurez-vous que votre mod\u00e8le figure toujours sur la liste de compatibilit\u00e9. Vous pouvez v\u00e9rifier dans notre <a  href=\"https:\/\/www.macobserver.com\/fr\/non-categorise\/apple-lance-ios-26-le-15-septembre-verifiez-si-votre-iphone-est-compatible\/\">guide de compatibilit\u00e9 iOS 26<\/a>.   <\/p>\n\n<p>Si votre appareil n&rsquo;est pas pris en charge, vous \u00eates bloqu\u00e9 sur votre version actuelle. S&rsquo;il l&rsquo;est, passez \u00e0 l&rsquo;\u00e9tape suivante. <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-2-make-sure-you-have-enough-storage\">2. Assurez-vous d&rsquo;avoir suffisamment d&rsquo;espace de stockage<\/h2>\n\n<p>Les mises \u00e0 jour iOS n\u00e9cessitent g\u00e9n\u00e9ralement <strong>8 \u00e0 10 Go d&rsquo;espace libre<\/strong> pour \u00eatre t\u00e9l\u00e9charg\u00e9es et install\u00e9es. Si votre iPhone est presque plein, lib\u00e9rez de l&rsquo;espace en supprimant les applications inutilis\u00e9es, en d\u00e9chargeant les photos vers iCloud ou en d\u00e9pla\u00e7ant les gros fichiers vers votre ordinateur. <\/p>\n\n<p>Conseil : V\u00e9rifiez votre stockage sous <strong>R\u00e9glages &gt; G\u00e9n\u00e9ral &gt; Stockage iPhone<\/strong>.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"473\" height=\"1024\" src=\"https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-473x1024.png\" alt=\"stockage iphone\" class=\"wp-image-399509\" style=\"width:317px;height:auto\" srcset=\"https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-473x1024.png 473w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-139x300.png 139w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-768x1663.png 768w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-709x1536.png 709w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-946x2048.png 946w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-97x210.png 97w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-400x866.png 400w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage-600x1299.png 600w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/storage.png 960w\" sizes=\"auto, (max-width: 473px) 100vw, 473px\" \/><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\" id=\"h-3-restart-your-iphone-and-try-again\">3. Red\u00e9marrez votre iPhone et r\u00e9essayez<\/h2>\n\n<p>Cela semble simple, mais un red\u00e9marrage \u00e9limine les dysfonctionnements temporaires qui pourraient bloquer la mise \u00e0 jour.<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Maintenez enfonc\u00e9s le bouton lat\u00e9ral + le bouton de volume jusqu&rsquo;\u00e0 ce que \u00ab glisser pour \u00e9teindre \u00bb apparaisse.<\/li>\n\n\n\n<li>Rallumez le t\u00e9l\u00e9phone et v\u00e9rifiez <strong>R\u00e9glages &gt; G\u00e9n\u00e9ral &gt; Mise \u00e0 jour logicielle<\/strong> \u00e0 nouveau.<\/li>\n<\/ul>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"473\" height=\"1024\" src=\"https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-473x1024.png\" alt=\"v&#xE9;rification des mises &#xE0; jour iphone\" class=\"wp-image-399513\" style=\"width:353px;height:auto\" srcset=\"https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-473x1024.png 473w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-139x300.png 139w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-768x1663.png 768w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-709x1536.png 709w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-946x2048.png 946w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-97x210.png 97w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-400x866.png 400w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading-600x1299.png 600w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/update-loading.png 960w\" sizes=\"auto, (max-width: 473px) 100vw, 473px\" \/><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\" id=\"h-4-check-your-wi-fi-connection\">4. V\u00e9rifiez votre connexion Wi-Fi<\/h2>\n\n<p>Les mises \u00e0 jour ne se t\u00e9l\u00e9chargeront pas sur un Wi-Fi faible ou instable. Connectez-vous \u00e0 un r\u00e9seau priv\u00e9 et puissant (le Wi-Fi domestique est id\u00e9al) et r\u00e9essayez. <\/p>\n\n<p>Si votre routeur fait des siennes, r\u00e9initialisez-le. Ou basculez vers un autre r\u00e9seau Wi-Fi de confiance. <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-5-update-using-a-computer\">5. Mettez \u00e0 jour \u00e0 l&rsquo;aide d&rsquo;un ordinateur<\/h2>\n\n<p>Si la mise \u00e0 jour refuse de s&rsquo;installer par voie hertzienne, branchez votre iPhone sur un Mac ou un PC :<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Sur un Mac ex\u00e9cutant macOS Catalina ou version ult\u00e9rieure, ouvrez le <strong>Finder<\/strong>. Sur les anciens Mac ou Windows, ouvrez <strong>iTunes<\/strong>. <\/li>\n\n\n\n<li>Connectez votre iPhone avec un c\u00e2ble.<\/li>\n\n\n\n<li>S\u00e9lectionnez votre appareil dans Finder\/iTunes.<\/li>\n\n\n\n<li>Cliquez sur <strong>rechercher une mise \u00e0 jour<\/strong>.<br\/><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"375\" class=\"wp-image-399020\" style=\"width: 700px;\" src=\"https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder.png\" alt=\"rechercher des mises &#xE0; jour dans finder\" srcset=\"https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder.png 1560w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-300x161.png 300w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-1024x549.png 1024w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-768x412.png 768w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-1536x823.png 1536w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-330x177.png 330w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-400x214.png 400w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-600x322.png 600w, https:\/\/www.macobserver.com\/wp-content\/uploads\/2025\/09\/check_for_update_in_finder-1200x643.png 1200w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n\n\n\n<li>T\u00e9l\u00e9chargez et installez iOS 26 \u00e0 partir de l\u00e0.<\/li>\n<\/ol>\n\n<p>Cette m\u00e9thode est \u00e9galement utile si votre iPhone manque d&rsquo;espace.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-6-disable-beta-profiles\">6. D\u00e9sactivez les profils b\u00eata<\/h2>\n\n<p>Si vous testiez la version b\u00eata d&rsquo;iOS 26, un profil b\u00eata r\u00e9siduel peut bloquer la version publique.<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Allez dans <strong>R\u00e9glages &gt; G\u00e9n\u00e9ral &gt; VPN et gestion d&rsquo;appareils<\/strong>.<\/li>\n\n\n\n<li>Supprimez tous les profils b\u00eata.<\/li>\n\n\n\n<li>Red\u00e9marrez votre iPhone et v\u00e9rifiez \u00e0 nouveau les mises \u00e0 jour.<\/li>\n<\/ol>\n\n<p>Besoin d&rsquo;aide pour quitter la b\u00eata ? Suivez notre guide sur <a  href=\"https:\/\/www.macobserver.com\/fr\/guide-pratique\/comment-retrograder-dios-26-vers-ios-18-en-toute-securite-5-methodes\/\">comment r\u00e9trograder d&rsquo;iOS 26 vers iOS 18 en toute s\u00e9curit\u00e9<\/a> \u2014 les \u00e9tapes pour se d\u00e9sinscrire sont les m\u00eames. <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-7-free-up-system-resources\">7. Lib\u00e9rez les ressources syst\u00e8me<\/h2>\n\n<p>Parfois, les fonctionnalit\u00e9s d&rsquo;accessibilit\u00e9, les t\u00e9l\u00e9chargements en arri\u00e8re-plan ou le mode \u00e9conomie d&rsquo;\u00e9nergie peuvent ralentir les choses. Essayez de d\u00e9sactiver le <strong>Mode \u00e9conomie d&rsquo;\u00e9nergie<\/strong> (R\u00e9glages &gt; Batterie) avant la mise \u00e0 jour. <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-8-check-apple-s-servers\">8. V\u00e9rifiez les serveurs d&rsquo;Apple<\/h2>\n\n<p>Il est possible que le probl\u00e8me ne vienne pas de votre c\u00f4t\u00e9. Lorsqu&rsquo;un nouvel iOS est lanc\u00e9, les serveurs d&rsquo;Apple sont inond\u00e9s de demandes. Si des millions de personnes t\u00e9l\u00e9chargent en m\u00eame temps, les mises \u00e0 jour peuvent se bloquer.  <\/p>\n\n<p>Dans ce cas, attendez quelques heures et r\u00e9essayez.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-9-last-resort-reset-network-settings\">9. Dernier recours : r\u00e9initialisez les param\u00e8tres r\u00e9seau<\/h2>\n\n<p>Si rien de ce qui pr\u00e9c\u00e8de ne fonctionne, r\u00e9initialisez les param\u00e8tres r\u00e9seau de votre iPhone.<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Allez dans <strong>R\u00e9glages &gt; G\u00e9n\u00e9ral &gt; Transf\u00e9rer ou r\u00e9initialiser l&rsquo;iPhone &gt; R\u00e9initialiser &gt; R\u00e9initialiser les r\u00e9glages r\u00e9seau<\/strong>.<\/li>\n<\/ul>\n\n<p>Cela efface les mots de passe Wi-Fi enregistr\u00e9s, alors assurez-vous de les conna\u00eetre avant de faire cela.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-the-bottom-line\">Conclusion<\/h2>\n\n<p>Si vous ne pouvez pas mettre \u00e0 jour vers iOS 26, cela se r\u00e9sume g\u00e9n\u00e9ralement \u00e0 trois choses : votre iPhone n&rsquo;est pas pris en charge, vous n&rsquo;avez pas assez d&rsquo;espace de stockage, ou les serveurs d&rsquo;Apple sont occup\u00e9s. Commencez par les solutions rapides \u2014 red\u00e9marrez votre t\u00e9l\u00e9phone, lib\u00e9rez de l&rsquo;espace, connectez-vous \u00e0 un Wi-Fi solide \u2014 et si cela \u00e9choue, utilisez un ordinateur pour installer. <\/p>\n\n<p>Pour en savoir plus sur ce qu&rsquo;apporte iOS 26, consultez notre <a  href=\"https:\/\/www.macobserver.com\/fr\/actualites\/60-nouvelles-fonctionnalites-dios-26-a-essayer-des-maintenant\/\">r\u00e9capitulatif complet des fonctionnalit\u00e9s d&rsquo;iOS 26<\/a>. Et si vous \u00eates curieux du mat\u00e9riel iPhone livr\u00e9 avec iOS 26 d&rsquo;origine, consultez notre guide sur les <a  href=\"https:\/\/www.macobserver.com\/tips\/iphone-17-features-price-and-release-date\/\">fonctionnalit\u00e9s et le prix de l&rsquo;iPhone 17<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>iOS 26 est officiellement disponible, mais tout le monde ne voit pas la mise \u00e0 jour imm\u00e9diatement. Si votre iPhone refuse d&rsquo;installer la nouvelle version, ne vous inqui\u00e9tez pas, il y a plusieurs raisons \u00e0 cela, et la plupart sont faciles \u00e0 r\u00e9soudre. Examinons ce qu&rsquo;il faut v\u00e9rifier et comment mettre \u00e0 jour votre appareil. [&hellip;]<\/p>\n","protected":false},"author":18939,"featured_media":433709,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[82137,82101],"tags":[],"work":[],"class_list":["post-399693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide-pratique","category-non-categorise"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Impossible de mettre \u00e0 jour vers iOS 26 ? Voici comment r\u00e9soudre le probl\u00e8me<\/title>\n<meta name=\"description\" content=\"iOS 26 est sorti, mais la mise \u00e0 jour n&#039;appara\u00eet pas pour tous. Si votre iPhone refuse l&#039;installation, voici quoi faire.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.macobserver.com\/fr\/guide-pratique\/impossible-de-mettre-a-jour-vers-ios-26-voici-comment-resoudre-le-probleme\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Impossible de mettre \u00e0 jour vers iOS 26 ? Voici comment r\u00e9soudre le probl\u00e8me\" \/>\n<meta property=\"og:description\" content=\"iOS 26 est sorti, mais la mise \u00e0 jour n&#039;appara\u00eet pas pour tous. 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