{"id":13233,"date":"2022-07-27T12:00:00","date_gmt":"2022-07-27T04:00:00","guid":{"rendered":"https:\/\/rewa.tech\/huawei-mate-40-pro-keep-restarting-repair\/"},"modified":"2024-08-28T14:43:49","modified_gmt":"2024-08-28T06:43:49","slug":"how-to-fix-huawei-mate-40-pro-keeps-restarting","status":"publish","type":"post","link":"https:\/\/rewa.tech\/fr\/how-to-fix-huawei-mate-40-pro-keeps-restarting\/","title":{"rendered":"Comment r\u00e9parer le Huawei Mate 40 Pro qui ne cesse de red\u00e9marrer"},"content":{"rendered":"<p>Imagine a scenario where a Huawei Mate 40 Pro keeps restarting because of significant drop damage, resulting in a cracked screen and visible liquid crystal leakage. As a consequence, the phone continuously reboots, displaying the HUAWEI logo for a brief moment before shutting off again. In this blog, we will explore potential repairs to address this challenging issue and help you get your Huawei Mate 40 Pro back to optimal functionality.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile has-blush-light-purple-gradient-background has-background\"><figure class=\"wp-block-media-text__media\"><img fetchpriority=\"high\" decoding=\"async\" width=\"938\" height=\"1024\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/Mate_40_Pro_Image-938x1024.png\" alt=\"huawei mate 40 pro\" class=\"wp-image-15661 size-full\" title=\"\" srcset=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/Mate_40_Pro_Image-938x1024.png 938w, https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/Mate_40_Pro_Image-275x300.png 275w, https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/Mate_40_Pro_Image-768x838.png 768w, https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/Mate_40_Pro_Image.png 1283w\" sizes=\"(max-width: 938px) 100vw, 938px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">D\u00e9tails du t\u00e9l\u00e9phone :<\/h3>\n\n\n\n<p><strong>Mod\u00e8le :<\/strong>\u00a0HUAWEI Mate 40 Pro<\/p>\n\n\n\n<p><strong>Annonc\u00e9 :<\/strong>&nbsp;2020, 22 octobre<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Why Huawei Mate 40 Pro Keeps Restarting<\/h2>\n\n\n\n<p>A <a href=\"https:\/\/rewa.tech\/fr\/categorie\/guide\/huawei\/\">Huawei<\/a> Mate 40 Pro that has sustained serious <a href=\"https:\/\/rewa.tech\/fr\/le-huawei-mate-40-pro-naffiche-plus-rien-a-cause-dune-chute\/\" data-type=\"post\" data-id=\"13245\">dommages dus \u00e0 la chute<\/a> is experiencing a persistent restarting issue. The screen is cracked, with visible liquid crystal leakage. When attempting to start the phone, it continuously reboots, showing the HUAWEI logo for a second before shutting off again.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9pannage<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1: Disassemble the Phone<\/h3>\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 wp-block-gallery-1 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\/01__The_housing_removed_easily.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\/02__Remove_the_screws_that_lock_the_motherboard.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\/03__Pay_attention_to_the_flex_cable_Hidden.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>Begin by removing the back cover. Due to the severe drop damage, the cover should come off easily.<\/li>\n\n\n\n<li>Remove the screws securing the motherboard using a <a href=\"https:\/\/shop.rewa.tech\/detail\/refox-rs2-2d-screwdriver-set.html\">tournevis<\/a>.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p><em>Carefully separate the wireless charging coil module. Be cautious of the hidden flex cable to avoid damaging it.<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2: Screen Test<\/h3>\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\/03__Reboot.png\" 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<ul class=\"wp-block-list\">\n<li>Replace the damaged screen with a new, functioning screen to test the device.<\/li>\n\n\n\n<li>The phone continues to reboot, indicating that the problem is not with the screen but with the motherboard.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3: Identifying the Root Cause<\/h3>\n\n\n\n<p>Based on repair experience, a common cause of the rebooting issue in such cases is poor soldering or loosening of buck inductors on the motherboard.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Processus de r\u00e9paration<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1: Inspect the Buck Inductors:<\/h3>\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-2 is-cropped 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\/04__remove_the_shielding_cover_on_the_motherboard.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__check_the_buck_inductors.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\/06__This_inductor_drop_off_easily_when_press_when_pressing_with_blade_knife_slightly.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>Remove the shielding covers from the motherboard to expose the components.<\/li>\n\n\n\n<li>Focus on the buck inductors around the Power Management Integrated Circuit (PMIC).<\/li>\n\n\n\n<li>Utiliser un <a href=\"https:\/\/shop.rewa.tech\/detail\/anti-static-straight-tweezer-with-ceramic-head-sc-11a-oem-new.html\">tweezer<\/a> ou <a href=\"https:\/\/shop.rewa.tech\/detail\/mijing-3-in-1-knife-handle-blade-repair-set.html\">couteau \u00e0 lame<\/a> to gently pry the inductors, checking for any that are loose or poorly soldered.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2: Identify Loose Components:<\/h3>\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\/07__removed_eaily.png\" 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<ul class=\"wp-block-list\">\n<li>Due to the PCB design, small inductors around the chip can easily become loose or poorly soldered after serious drop damage.<\/li>\n\n\n\n<li>If an inductor or other small component drops off easily when pressed, it indicates poor soldering.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3: Resolder the Loose Inductors:<\/h3>\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\/08__Lets_solder_them_back.png\" 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<ul class=\"wp-block-list\">\n<li>Thoroughly check all the inductors around the PMIC.<\/li>\n\n\n\n<li>Resolder any loose or detached inductors and components back onto the motherboard.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4: Reassemble and Test:<\/h3>\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 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\/09__All_functions_are_OK.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\/HUAWEI_Mate_40_Pro_Keep_Restarting.png\" alt=\"HUAWEI Mate 40 Pro Keep Restarting\" 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>Replace the damaged screen with a new one and reassemble the phone.<\/li>\n\n\n\n<li>Test the device to ensure it boots normally and all functions are operational.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion :<\/h2>\n\n\n\n<p>The restarting issue on the Huawei Mate 40 Pro, caused by drop damage, was resolved by identifying and resoldering the loosened buck inductors on the motherboard. This repair demonstrates the importance of repair experience and steady handwork in addition to theoretical knowledge and troubleshooting logic. Accumulating hands-on experience and refining soldering skills are crucial for successful repairs.<\/p>","protected":false},"excerpt":{"rendered":"<p>Imagine a scenario where a Huawei Mate 40 Pro keeps restarting because of significant drop damage, resulting in a cracked screen and visible liquid crystal leakage. As a consequence, the phone continuously reboots, displaying the HUAWEI logo for a brief moment before shutting off again. In this blog, we will explore potential repairs to address [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":13234,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[166,10,5,13,447],"tags":[704,1442,1443],"class_list":["post-13233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-huawei","category-android","category-guide","category-how-to","category-troubleshooting","tag-huawei","tag-huawei-20-pro","tag-huawei-keeps-restarting"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/13233","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=13233"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/13233\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media\/13234"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media?parent=13233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/categories?post=13233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/tags?post=13233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}