{"id":13261,"date":"2022-08-12T14:49:00","date_gmt":"2022-08-12T06:49:00","guid":{"rendered":"https:\/\/rewa.tech\/xiaomi-mi-11-ultra-cannot-boot-repair\/"},"modified":"2024-08-23T09:03:44","modified_gmt":"2024-08-23T01:03:44","slug":"xiaomi-mi-11-ultra-ne-peut-pas-demarrer-reparation","status":"publish","type":"post","link":"https:\/\/rewa.tech\/fr\/xiaomi-mi-11-ultra-cannot-boot-repair\/","title":{"rendered":"Guide de r\u00e9paration du Xiaomi Mi 11 Ultra qui ne peut pas d\u00e9marrer"},"content":{"rendered":"<p>Le Xiaomi Mi 11 Ultra, annonc\u00e9 en mars 2021, est un smartphone phare connu pour ses fonctionnalit\u00e9s avanc\u00e9es. Cependant, des probl\u00e8mes tels que des dommages dus \u00e0 l'humidit\u00e9 peuvent emp\u00eacher le t\u00e9l\u00e9phone de d\u00e9marrer. Ce guide fournit un d\u00e9pannage d\u00e9taill\u00e9 et un processus de r\u00e9paration pour un Xiaomi Mi 11 Ultra qui ne peut pas s'allumer en raison de dommages caus\u00e9s par l'humidit\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center has-blush-light-purple-gradient-background has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/XiaomiMi11Ultra.jpg\" alt=\"\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p><strong>Mod\u00e8le :<\/strong> Xiaomi Mi 11 Ultra<\/p>\n\n\n\n<p><strong>Annonc\u00e9 :<\/strong>&nbsp;2021, 29 mars<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u00e9nom\u00e8ne de d\u00e9faut<\/h2>\n\n\n\n<p>Le t\u00e9l\u00e9phone a \u00e9t\u00e9 nettoy\u00e9 avec de l'alcool, ce qui a provoqu\u00e9 la p\u00e9n\u00e9tration d'humidit\u00e9 dans la carte m\u00e8re, entra\u00eenant des probl\u00e8mes d'affichage et, finalement, l'impossibilit\u00e9 d'allumer le t\u00e9l\u00e9phone. Un centre de r\u00e9paration officiel a diagnostiqu\u00e9 un dommage caus\u00e9 par l'homme, le rendant in\u00e9ligible \u00e0 la r\u00e9paration sous garantie. Le co\u00fbt du remplacement de la carte m\u00e8re et de l'\u00e9cran \u00e9tant trop \u00e9lev\u00e9, le t\u00e9l\u00e9phone nous a \u00e9t\u00e9 envoy\u00e9 pour r\u00e9paration.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9pannage<\/h2>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/01__Disseemble_the_phone.png\" alt=\"\" style=\"object-fit:cover;width:400px;height:600px\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\"><strong>Inspection initiale<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00e9montez le t\u00e9l\u00e9phone et retirez la carte m\u00e8re.<\/li>\n\n\n\n<li>Inspectez la carte m\u00e8re au microscope. Bien que certaines zones pr\u00e9sentent une corrosion mineure, il n'y a pas de dommages \u00e9vidents.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Nettoyer les parties corrosives \u00e0 l'aide d'un nettoyant pour circuits imprim\u00e9s.<\/li>\n\n\n\n<li>Inspecter la petite carte situ\u00e9e en bas pour v\u00e9rifier qu'elle n'est pas corrod\u00e9e ; aucune trace de corrosion n'a \u00e9t\u00e9 trouv\u00e9e.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped lightbox wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/03__Clean_the_corrosive_parts_with_the_PCB_cleaner.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/04__no_obvious_damage_on_the_bottom_either.png\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/04__no_obvious_damage_on_the_bottom_either.png\" alt=\"\" title=\"\"><\/a><\/figure>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Test de tension<\/strong>:<\/h2>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped lightbox wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/06__Boot_with_terrzers.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/05__No_current_leakage_when_connecting_with_the_DC_power_supply_machine.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/07__1_5A_charging_Current.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/08__600mA_current_leakage.png\" alt=\"\" title=\"\"><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Connectez la carte m\u00e8re \u00e0 une machine d'alimentation en courant continu.<\/li>\n\n\n\n<li>Aucune fuite de courant n'a \u00e9t\u00e9 d\u00e9tect\u00e9e.<\/li>\n\n\n\n<li>Tentative de d\u00e9clenchement du processus d'amor\u00e7age \u00e0 l'aide d'une pince \u00e0 \u00e9piler. Le courant d'amor\u00e7age fluctue entre 0 et 200mA.<\/li>\n\n\n\n<li>Assembler temporairement le t\u00e9l\u00e9phone pour tester la fonction de charge ; le courant de charge \u00e9tait normal.<\/li>\n\n\n\n<li>Toutefois, la zone de l'unit\u00e9 de gestion de la puissance (PMU) \u00e9tait plus chaude que les autres zones.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\"><strong>Enqu\u00eate compl\u00e9mentaire<\/strong>:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reconnectez la carte m\u00e8re \u00e0 la machine d'alimentation en courant continu ; une fuite de courant de plus de 600mA a \u00e9t\u00e9 d\u00e9tect\u00e9e.<\/li>\n\n\n\n<li>Utilisez la m\u00e9thode d'inspection de la colophane pour identifier les sources de chaleur. La colophane sur la puce de la PMU a fondu, ce qui indique une d\u00e9t\u00e9rioration potentielle de la PMU.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/09__osin_melt.png\" alt=\"\" title=\"\"><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9montage de la puce PMU :<\/h2>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped lightbox wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/10__Clean_pads_on_the_PCB_with_solder_wick.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/11__focus_on_checking_the_heat_area_diode_values.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/12__After_measuring__we_find_there_is_a_short_on_the_pin_at_the_edge.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/13__Jump_a_wire_on_the_capacitor.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/14__Then_apply_a_1_8_voltage_on_the_rail.png\" alt=\"\" title=\"\"><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Coupez le couvercle de blindage et retirez le PMIC (Power Management IC).<\/li>\n\n\n\n<li>Nettoyer les plots de collage sur le circuit imprim\u00e9 avec de la m\u00e8che \u00e0 souder.<\/li>\n\n\n\n<li>Mesurez les valeurs des diodes dans la zone de chaleur \u00e0 l'aide d'un multim\u00e8tre, en trouvant un court-circuit sur une broche au bord.<\/li>\n\n\n\n<li>Sautez un fil du c\u00f4t\u00e9 du condensateur pour appliquer une tension et identifier les composants court-circuit\u00e9s.<\/li>\n\n\n\n<li>Appliquer 1,8 volt au rail et trouver de la chaleur provenant de la carte de signal 5G.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Inspection de la carte de signal 5G :<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u00e9parer le tableau de signalisation 5G \u00e0 deux couches.<\/li>\n\n\n\n<li>Recherchez les copeaux corrosifs \u00e0 l'int\u00e9rieur et retirez-les.<\/li>\n\n\n\n<li>Utilisez \u00e0 nouveau la m\u00e9thode d'inspection \u00e0 la colophane et identifiez un condensateur fondu. Retirez le condensateur.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-2 is-cropped lightbox wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image\"><a href=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/15__5G_board_hot.png\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/15__5G_board_hot.png\" alt=\"\" title=\"\"><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/16__After_separating__we_can_find_there_are_some_chips_inside_are_corrosive.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/17__A_capacitor_with_melt_rosin.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/18__Remove_the_melt_cap_directly.png\" alt=\"\" title=\"\"><\/figure>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Processus de r\u00e9paration<\/h2>\n\n\n\n<p><strong>Reballage et ressoudage<\/strong>:<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/Xiaomi_Mi_11_Ultra_Cannot_Boot_Repair.png\" alt=\"R\u00e9paration du Xiaomi Mi 11 Ultra qui ne peut pas d\u00e9marrer\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Reboucher trois puces corrosives et le circuit int\u00e9gr\u00e9 de l'unit\u00e9 de gestion de la maintenance.<\/li>\n\n\n\n<li>Soudez les composants refabriqu\u00e9s sur la carte m\u00e8re.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p>Une fois le processus de rebouclage termin\u00e9, proc\u00e9dez \u00e0 un nouvel essai pour vous assurer qu'il n'y a plus de fuites.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Recombinez la carte de signal 5G avec la carte principale.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/19__Solder_back_the_5G_little_board.png\" alt=\"\" title=\"\"><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Assemblage et essais<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped lightbox wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/00__Fixed_perfectly.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/20__Fixed_the_phone.png\" alt=\"\" title=\"\"><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><strong>Assembler le t\u00e9l\u00e9phone<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Remontez le t\u00e9l\u00e9phone avec l'\u00e9cran et les pi\u00e8ces d'origine.<\/li>\n\n\n\n<li>Appuyez sur le bouton d'alimentation pour d\u00e9marrer le t\u00e9l\u00e9phone.<\/li>\n<\/ul>\n\n\n\n<p><strong>Test de fonctionnement<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00e9rifiez que le t\u00e9l\u00e9phone d\u00e9marre normalement et que toutes les fonctions fonctionnent correctement.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9sum\u00e9<\/h2>\n\n\n\n<p>Le probl\u00e8me de non-d\u00e9marrage du Xiaomi Mi 11 Ultra a \u00e9t\u00e9 r\u00e9solu par.. :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Retrait du condensateur court-circuit\u00e9.<\/li>\n\n\n\n<li>Nettoyer et ressouder les puces corrosives li\u00e9es \u00e0 la fonction de signal 5G.<\/li>\n\n\n\n<li>Reconditionnement de l'IC PMU.<\/li>\n<\/ul>\n\n\n\n<p>Ce processus de r\u00e9paration n\u00e9cessite un travail pr\u00e9cis et une inspection minutieuse afin de r\u00e9tablir le fonctionnement complet du t\u00e9l\u00e9phone sans causer de dommages suppl\u00e9mentaires.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Xiaomi Mi 11 Ultra, announced in March 2021, is a flagship smartphone known for its advanced features. However, issues such as moisture damage can cause the phone to fail to boot. This guide provides a detailed troubleshooting and repair process for a Xiaomi Mi 11 Ultra that cannot turn on due to moisture damage. [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":13262,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[10,5,13],"tags":[1403,1402],"class_list":["post-13261","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-android","category-guide","category-how-to","tag-xiaomi-mi-11-ultra","tag-xiaomi-mi-11-ultra-problems"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/13261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/comments?post=13261"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/13261\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media\/13262"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media?parent=13261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/categories?post=13261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/tags?post=13261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}