{"id":13227,"date":"2022-07-26T20:23:00","date_gmt":"2022-07-26T12:23:00","guid":{"rendered":"https:\/\/rewa.tech\/huawei-mate-40-pro-serious-drop-damage-repair\/"},"modified":"2024-08-28T16:59:55","modified_gmt":"2024-08-28T08:59:55","slug":"how-to-repair-huawei-mate-40-pro-after-a-hard-drop","status":"publish","type":"post","link":"https:\/\/rewa.tech\/it\/how-to-repair-huawei-mate-40-pro-after-a-hard-drop\/","title":{"rendered":"Come riparare HUAWEI Mate 40 Pro dopo una caduta accidentale"},"content":{"rendered":"<p>Dropping your HUAWEI Mate 40 Pro can be a heart-stopping moment, especially when you pick it up to find a black screen, a shattered rear cover, and disturbing signs of liquid crystal leakage. These damages can make your once-premium device seem beyond repair, but don&#8217;t worry\u2014there&#8217;s hope. In this blog, we&#8217;ll walk you through a detailed, step-by-step guide on how to restore your HUAWEI Mate 40 Pro to its former glory.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile has-blush-light-purple-gradient-background has-background\" style=\"grid-template-columns:44% auto\"><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\">Dettagli telefonici<\/h3>\n\n\n\n<p><strong>Modello:<\/strong> HUAWEI Mate 40 Pro<\/p>\n\n\n\n<p><strong>Annunciato:<\/strong>&nbsp;2020, 22 ottobre<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Fenomeno dei difetti<\/h2>\n\n\n\n<p>A HUAWEI Mate 40 Pro was dropped to the floor, causing the screen to turn black and the rear cover to crack into pieces. The upper corner of the screen also shows signs of liquid crystal leakage.<\/p>\n\n\n\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__Cracked_into_pieces_rear_cover.png\" alt=\"huawei mate 40 pro damaged back\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/02__The_screen_with_liquid_leakage.png\" alt=\"upper corner of the screen liquid leakage\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Risoluzione dei problemi<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1: Screen Test<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Replace the damaged screen with a new one to test the display functionality.<\/li>\n\n\n\n<li>Despite the new screen, the phone still does not display, indicating the issue could be related to the display circuit or a boot problem.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2: Ispezione della scheda madre<\/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__DOCK_Flex_Cable_Connector.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__Check_cosmetic_of_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__5G_signal_board.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 motherboard and perform a thorough cosmetic inspection.<\/li>\n\n\n\n<li>Discover that the motherboard is deformed and the DOCK flex cable connector is missing.<\/li>\n\n\n\n<li>The HUAWEI Mate 40 Pro has a double-layer structure motherboard with the 5G signal board soldered to it. The display connector is located on the 5G signal board.<\/li>\n\n\n\n<li>The no-display issue is likely due to a poor connection between the two layers of the motherboard.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3: Boot 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\/06__Trigger_to_boot_the_40_Pro.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_Serious_Drop_Damage_Repair.png\" alt=\"HUAWEI Mate 40 Pro Serious Drop Damage Repair\" 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>Collegare la scheda madre a un <a href=\"https:\/\/shop.rewa.tech\/detail\/sugon-3005pm-dc-power-supply.html\">Alimentazione in c.c.<\/a> and attempt to boot the device using tweezers.<\/li>\n\n\n\n<li>The boot current is normal, further pointing to a connection issue within the motherboard.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Processo di riparazione<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1: Separate the Motherboard Layers<\/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-4 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\/07__PCBHOLDER.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__After_separation_we_find_there_are_many_pads_missing.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>Place the motherboard on a PCB holder and use a hot air gun to heat and separate the two layers.<\/li>\n\n\n\n<li>After separation, observe that several pads are missing.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2: Repair the Missing Pads on the Main Motherboard<\/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\/10__Clean_with_solder_wick.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>Clean the pads on the main motherboard.<\/li>\n\n\n\n<li>Applicare <a href=\"https:\/\/shop.rewa.tech\/detail\/halogen-free-solder-paste-flux-my-up-78a.html\">fondente per pasta saldante <\/a>on the pads.<\/li>\n\n\n\n<li>Mix medium-temperature solder paste with high-temperature solder paste on the tin pads using a <a href=\"https:\/\/shop.rewa.tech\/detail\/sugon-t26d-smd-soldering-iron-station.html\">saldatore<\/a>.<\/li>\n\n\n\n<li>Thoroughly clean the pads with a solder wick.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3: Fix the Missing Pads<\/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-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\/11__Jump_wires.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__scratch_out_the_jumper_wires.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>Carefully scratch out the roots of the missing pads.<\/li>\n\n\n\n<li>For pads requiring jumper wires, make circles patiently.<\/li>\n\n\n\n<li>Apply a small amount of UV mask and cure it with a UV lamp.<\/li>\n\n\n\n<li>Scratch out the jumper wires once the UV mask is cured.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4: Repair the 5G Signal Board<\/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\/13__Reball_the_signal_board.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>Scratch out the necessary pads on the 5G signal board.<\/li>\n\n\n\n<li>Resolder the board using a stencil and a hot air gun.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">5: Recombine the Motherboard Layers:<\/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-6 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\/14__Reball_the_two_layers_of_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\/15__back_to_work.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>Reassemble the two layers of the motherboard and test the display using the original screen.<\/li>\n\n\n\n<li>The screen lights up normally, indicating the connection issue has been resolved.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p><strong>Replace the DOCK Flex Cable Connector:<\/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\/16__The_connector_is_fixed.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>Solder a new DOCK flex cable connector to the motherboard.<\/li>\n\n\n\n<li>With all issues fixed, the phone can be fully reassembled and tested.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusione:<\/h2>\n\n\n\n<p>The severe drop damage to the HUAWEI Mate 40 Pro, which resulted in a black screen and missing DOCK flex cable connector, was resolved by separating the motherboard layers, repairing missing pads, and resoldering the 5G signal board. After completing these repairs and replacing the DOCK flex cable connector, the phone&#8217;s display function was restored.<\/p>","protected":false},"excerpt":{"rendered":"<p>Dropping your HUAWEI Mate 40 Pro can be a heart-stopping moment, especially when you pick it up to find a black screen, a shattered rear cover, and disturbing signs of liquid crystal leakage. These damages can make your once-premium device seem beyond repair, but don&#8217;t worry\u2014there&#8217;s hope. In this blog, we&#8217;ll walk you through a [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":13228,"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":[1445,704,1444],"class_list":["post-13227","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-huawei","category-android","category-guide","category-how-to","category-troubleshooting","tag-drop-huawei","tag-huawei","tag-huawei-mate-40-pro"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/posts\/13227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/comments?post=13227"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/posts\/13227\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/media\/13228"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/media?parent=13227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/categories?post=13227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/tags?post=13227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}