{"id":13147,"date":"2022-06-17T21:17:00","date_gmt":"2022-06-17T13:17:00","guid":{"rendered":"https:\/\/rewa.tech\/iphone-12-pro-max-cannot-charge-and-stuck-and-apple-logo\/"},"modified":"2025-01-20T14:38:06","modified_gmt":"2025-01-20T06:38:06","slug":"iphone-12-pro-max-cannot-charge-and-stuck-and-apple-logo","status":"publish","type":"post","link":"https:\/\/rewa.tech\/es\/iphone-12-pro-max-cannot-charge-and-stuck-and-apple-logo\/","title":{"rendered":"El iPhone 12 Pro Max no se puede cargar y se queda atascado en el logo de Apple"},"content":{"rendered":"<p>An iPhone 12 Pro Max that won&#8217;t charge and remains stuck at the Apple logo is a repair technician\u2019s challenge. This issue arose after a screen replacement, leading to <a href=\"https:\/\/rewa.tech\/es\/etiqueta\/reparacion-de-la-placa-base\/\" data-type=\"post_tag\" data-id=\"214\">motherboard problems<\/a>. This detailed guide explores the troubleshooting process, identifies the root cause, and outlines the steps to replace the defective USB chip.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile is-image-fill-element has-blush-light-purple-gradient-background has-background\"><figure class=\"wp-block-media-text__media\"><img fetchpriority=\"high\" decoding=\"async\" width=\"866\" height=\"1024\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_12_Pro_Max_Image-866x1024.png\" alt=\"iPhone 12 pro max\" class=\"wp-image-14918 size-full\" style=\"object-position:50% 10%\" title=\"\" srcset=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_12_Pro_Max_Image-866x1024.png 866w, https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_12_Pro_Max_Image-254x300.png 254w, https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_12_Pro_Max_Image-768x909.png 768w, https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_12_Pro_Max_Image.png 940w\" sizes=\"(max-width: 866px) 100vw, 866px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Detalles del dispositivo<\/h3>\n\n\n\n<p><strong>Modelo:&nbsp;<\/strong>iPhone 12 Pro Max<\/p>\n\n\n\n<p><strong>Anunciado<\/strong>: 2020, October 13<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Fen\u00f3meno del defecto<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The original screen was damaged and has been replaced with a new one.<\/li>\n\n\n\n<li>After a few days of use, the phone stopped working and could not be booted.\u00a0<\/li>\n\n\n\n<li>Connected it to the charging cable, but there was no response.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Soluci\u00f3n de problemas<\/h2>\n\n\n\n<p>Disassemble the phone and apply a sticker to the Face ID module.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/01__Protect_the_Face_ID_module_with_a_sticker.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Inspecci\u00f3n inicial<\/h3>\n\n\n\n<p><strong>Face ID Module<\/strong>: Protected with a sticker before disassembly.<\/p>\n\n\n\n<p><strong>Placa base<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>No signs of previous repairs or water damage.<\/li>\n\n\n\n<li>No physical deformation.<\/li>\n<\/ul>\n\n\n\n<p>Everything looks fine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Boot Current Check<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Connected the motherboard to a DC power supply and observed the current curve.<\/li>\n\n\n\n<li>The boot current remained fixed at 400mA, suggesting chip damage.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Thermal Imaging Analysis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Separated the motherboard layers using a heating platform.<\/li>\n\n\n\n<li>Supplied power and used thermal imaging to locate overheating.<\/li>\n\n\n\n<li>Identified the USB chip as the source of excessive heat.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/02__The_USB_chip_get_hot.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Proceso de reparaci\u00f3n<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">USB Chip Removal<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Removed the defective USB chip using a hot air gun and tweezers.<\/li>\n\n\n\n<li>Worked quickly to avoid impacting the nearby Power Management Unit (PMU).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/03__Then_remove_the_chip_with_the_tweezer_and_hot_air_gun.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Pad Preparation<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cleaned the pads with solder flux and solder wick.<\/li>\n\n\n\n<li>Ensured the pads were smooth for optimal chip connection.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/04__Solder_it_back_to_the_motherboard.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Chip Replacement<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Re-balled the new USB chip to ensure all solder joints were intact.<\/li>\n\n\n\n<li>Soldered the chip onto the motherboard with precision.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Recombine Motherboard Layers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reassembled the motherboard layers using a heating platform.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/05__then_we_can_recombine_the_two_layers_of_motherboard_with_heating_platform.png\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Pruebas<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Boot Current Check<\/h3>\n\n\n\n<p>Verified that the boot current returned to normal after USB chip replacement.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_12_Pro_Max_Cannot_Charge.png\" alt=\"iPhone 12 Pro Max Cannot Charge\" title=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Functional Testing<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Assembled the phone and tested charging functionality.<\/li>\n\n\n\n<li>Conducted additional tests to ensure all functions were working correctly.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Resultado final<\/h2>\n\n\n\n<p>The iPhone 12 Pro Max was successfully repaired. The phone now charges normally, boots without issues, and retains full functionality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Principales conclusiones<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Precision Tools<\/strong>: Use thermal imaging to pinpoint overheating components.<\/li>\n\n\n\n<li><strong>Quick Repairs<\/strong>: Minimize heat exposure to sensitive components during desoldering.<\/li>\n\n\n\n<li><strong>Preventative Care<\/strong>: Protect nearby components like the PMU during chip replacement.<\/li>\n<\/ol>\n\n\n\n<p>For more professional repair tips and advanced techniques, visit <strong><a href=\"https:\/\/academy.rewa.tech\">Academia REWA<\/a><\/strong>.<\/p>\n\n\n\n<p>Let me know if you&#8217;d like any adjustments, additional sections, or graphics to accompany this guide!<\/p>","protected":false},"excerpt":{"rendered":"<p>An iPhone 12 Pro Max that won&#8217;t charge and remains stuck at the Apple logo is a repair technician\u2019s challenge. This issue arose after a screen replacement, leading to motherboard problems. This detailed guide explores the troubleshooting process, identifies the root cause, and outlines the steps to replace the defective USB chip. Device Details Model:&nbsp;iPhone [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":13148,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[158,5,13,447],"tags":[258,863],"class_list":["post-13147","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iphone-guide","category-guide","category-how-to","category-troubleshooting","tag-iphone-12-pro-max","tag-iphone-12-pro-max-repair"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/13147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/comments?post=13147"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/13147\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media\/13148"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media?parent=13147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/categories?post=13147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/tags?post=13147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}