{"id":13059,"date":"2022-03-21T21:45:00","date_gmt":"2022-03-21T13:45:00","guid":{"rendered":"https:\/\/rewa.tech\/iphone-11-common-issues\/"},"modified":"2024-05-10T15:24:46","modified_gmt":"2024-05-10T07:24:46","slug":"iphone-11-common-issues","status":"publish","type":"post","link":"https:\/\/rewa.tech\/fr\/iphone-11-common-issues\/","title":{"rendered":"iPhone 11 Common Issues and Repair Methods"},"content":{"rendered":"<p>iPhone 11 series common issues and repair methods sharing.<\/p>\n<\/p>\n<h2>iPhone 11<\/h2>\n<blockquote>\n<p><strong><\/strong><\/p>\n<p><strong>Insert SIM card but no service<\/strong><\/p>\n<ul>\n<li>The defect with a high chance is caused by the C1402_K on the&nbsp;VFE_HI_3V15 rail with problem, the reason of this capacitor is easy to damage should be caused by it&#8217;s located at the bottom side of the motherboard, which is very easy to get damged by ESD, water damge, drop damage or imporper disassembling operations.<\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/C1402_mdash__mdash_K.png\" width=\"1200\" height=\"712\" alt=\"\" title=\"\"><\/p>\n<ul>\n<li>Repair solution: as the C1402_K&nbsp;is a filter type capacitor, we can just remove it with tweezer directly.&nbsp; (The motherboard should be disassembled by the heating platform first, reference heating temperature 150\u2103\uff0c heating time: heat another 20s when the heating platform reaching the setting temperature)<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iPhone_11_Common_Issues.png\" alt=\"iPhone 11 Common Issues\" width=\"1200\" height=\"675\" title=\"\"><\/p>\n<\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<h3><strong>Half bright and half dim screen<\/strong><\/h3>\n<ul>\n<li>This kind of issue should be caused by the LED backlight drivers relative circuit, and the issue with a high chance is caused by the inductors on the backlight circuit as shown as below picture. The inductor L5652 with a higher failure rate!<strong><\/strong><\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/L5652.png\" alt=\"\" title=\"\"><\/p>\n<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/L5652_Location_On_the_Motherboard.png\" alt=\"L5652\" width=\"1185\" height=\"1030\" title=\"\"><\/p>\n<ul>\n<li>Repair solution: replace the inductor with a new one with the same specification (As we can see, the inductor is under the shielding cover, so the shielding cover should be removed first. )<\/li>\n<\/ul>\n<\/p>\n<h3>Volume Up button function failure<\/h3>\n<\/p>\n<ul>\n<li>The inductor FL8442 which located on the very bottom side of the motherboard is very easy to get damaged when cellphone disassembling.&nbsp;<span style=\"color: #808080;\">(above the upper antenna connector J_UAT_K)<\/span>&nbsp;<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/FL8442.png\" alt=\"\" title=\"\"><\/p>\n<\/p>\n<p><a href=\"https:\/\/refoxteam.com\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/FL8442____on_the_bitmap___.png\" alt=\"FL8442 (location quoted from Refox bitmap)\" width=\"1200\" height=\"958\" title=\"\"><\/a><\/p>\n<ul>\n<li>Repair solution: we can just get the inductor FL8442 shorted by some solder tin wire directly.&nbsp;<\/li>\n<\/ul>\n<\/p>\n<h3>Drop Damaged Phone No Service<\/h3>\n<ul>\n<li>Reason: the basedband problem with high chance is caused by the Transceiver IC XCVR_K get damaged<\/li>\n<li>Repair solution: replace the transceiver IC XCVR_K with a new one <span style=\"color: #999999;\">(Part number&nbsp;PMB5765)<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/XCVR_K.png\" alt=\"\" title=\"\"><\/p>\n<\/p>\n<\/p>\n<p><span style=\"color: #0000ff;\"><strong>Code de r\u00e9duction sp\u00e9cial pour vous lire jusqu'\u00e0 la fin :<\/strong>&nbsp; &nbsp;<strong>ILoveRepair (Peut \u00eatre utilis\u00e9 pour tous les cours)<\/strong><\/span><\/p>\n<p>Welcome to join REWA academy to learn the detailed theory and handwork <strong><a href=\"https:\/\/academy.rewa.tech\/bundles\/complete-course-package\">repair course of iPhone series<\/a><\/strong><\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>iPhone 11 series common issues and repair methods sharing. iPhone 11 Insert SIM card but no service The defect with a high chance is caused by the C1402_K on the&nbsp;VFE_HI_3V15 rail with problem, the reason of this capacitor is easy to damage should be caused by it&#8217;s located at the bottom side of the motherboard, [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":13060,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[780],"tags":[],"class_list":["post-13059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iphone-repair-cases"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/13059","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=13059"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/13059\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media\/13060"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media?parent=13059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/categories?post=13059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/tags?post=13059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}