{"id":10314,"date":"2026-10-21T15:44:00","date_gmt":"2026-10-21T15:44:00","guid":{"rendered":"https:\/\/www.digi4u.co.uk\/blogs\/?p=10314"},"modified":"2026-10-21T15:44:13","modified_gmt":"2026-10-21T15:44:13","slug":"wireless-charging-not-working","status":"publish","type":"post","link":"https:\/\/www.digi4u.co.uk\/blogs\/wireless-charging-not-working\/","title":{"rendered":"Wireless Charging Not Working: Coil, Magnet and Alignment"},"content":{"rendered":"<style>.d4u-article{--ink:#182126;--text:#46525a;--muted:#6d7880;--line:#dce5e8;--panel:#f5f8f8;--teal:#28796f;--gold:#bd8b3d;font-family:\"Open Sans\",Helvetica,Arial,sans-serif;color:var(--text);font-size:18px;line-height:1.68;}.d4u-article h2{font-size:23px;line-height:1.3;color:var(--ink);margin:38px 0 14px;padding-bottom:8px;border-bottom:1px solid var(--line);}.d4u-article p{font-size:18px;line-height:1.68;margin:0 0 16px;}.d4u-article table{width:100%;border-collapse:collapse;margin:20px 0;font-size:16px;}.d4u-article th,.d4u-article td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}.d4u-article th{background:var(--panel);color:var(--ink);font-weight:700;}.d4u-article .image-block{margin:26px 0;text-align:center;}.d4u-article .image-block img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;}.d4u-article figcaption{font-size:14px;color:var(--muted);margin-top:8px;}.d4u-article .faq{margin-top:40px;padding-top:8px;}.d4u-article .faq-q{font-weight:700;color:var(--ink);margin:22px 0 6px;}.d4u-article .faq-a{margin:0 0 4px;}.d4u-article .cta{margin-top:40px;padding:24px;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:8px;background:var(--panel);}.d4u-article .cta p{margin:0 0 14px;}.d4u-article .cta a{display:inline-block;background:var(--teal);color:#fff;text-decoration:none;padding:12px 22px;border-radius:6px;font-weight:600;}<\/style>\n<div class=\"d4u-article\">\n<p>Wireless charging fails in a quieter way than a cable. There is no error message and no damaged connector to see, only a phone that does not charge when it is placed on a pad.<\/p>\n<p>The cause can be the charger, the alignment, the coil, the magnet array or the charging circuit. Testing them in order is faster than replacing parts.<\/p>\n<h2>What should you test first?<\/h2>\n<p>The charger and the position of the phone.<\/p>\n<p>Try a known-good charger with the phone placed centrally. Wireless charging is sensitive to alignment, and a phone that is a centimetre off may not connect at all.<\/p>\n<p>Try the same charger with another phone. If that works, the charger is fine and the fault is in the device.<\/p>\n<h2>How does alignment affect charging?<\/h2>\n<p>The coil has to sit over the charger coil.<\/p>\n<p>A magnetic charger makes alignment easy, but a plain pad relies on the user placing the phone correctly. A thick case or a metal plate can move the coil out of range.<\/p>\n<p>Remove the case and try again. A case that is too thick, or one with a magnet in the wrong place, is a common cause of intermittent charging.<\/p>\n<h2>What does the magnet array do?<\/h2>\n<p>It holds the phone in the right position.<\/p>\n<p>On magnetic models, a ring of magnets aligns the phone with the charger. If the array is damaged or missing, the phone may still charge on a plain pad but fail on a magnetic one.<\/p>\n<p>A rear glass replacement can disturb the array, which is why the adhesive and the alignment matter on that repair.<\/p>\n<h2>How do you test the coil?<\/h2>\n<p>With a known charger and a known phone.<\/p>\n<p>Place the device on a charger that works with another phone. If it does not charge, the coil or its connection is the suspect.<\/p>\n<p>Check the coil flex for a crease or a tear. The coil sits behind the back glass and is easy to damage during a rear repair.<\/p>\n<h2>When is it the charging circuit?<\/h2>\n<p>When the coil is good and the device still does not charge.<\/p>\n<p>If a known-good coil and charger still fail, the fault is in the wireless charging circuit on the board. That is a board-level repair.<\/p>\n<p>The same circuit may also affect other charging behaviour, so check whether the device charges by cable before deciding.<\/p>\n<figure class=\"image-block\"><a href=\"\/accessories\"><br \/>\n<img fetchpriority=\"high\" decoding=\"async\" src=\"\/image\/cache\/catalog\/LingXing\/2025-09\/b2c7391aa1cf497caab897d3eaf9f4341756957912-600x315w.jpeg\" alt=\"XO CX007 15W magnetic wireless charger in black\" width=\"600\" height=\"315\" \/><br \/>\n<\/a><figcaption>A charger that works with one phone and not another is usually an alignment or coil problem rather than a dead charger.<\/figcaption><\/figure>\n<h2>What about the case and the charger cable?<\/h2>\n<p>Both can reduce or stop the charge.<\/p>\n<p>A thick case increases the distance between the coils and reduces efficiency. A case with a metal plate or a card holder can block the field entirely.<\/p>\n<p>The charger&#8217;s own cable matters as well. A weak cable may power a small charger but fail to deliver enough for a fast wireless charge.<\/p>\n<h2>How do you test charging speed?<\/h2>\n<p>With a known device and a timed charge.<\/p>\n<p>Place a known-good phone on the charger and note the percentage gain over ten minutes. If the gain is normal, the charger is working at its rated level.<\/p>\n<p>Then repeat with the customer&#8217;s device. A slower gain points at the coil or the alignment rather than the charger.<\/p>\n<h2>What if it charges intermittently?<\/h2>\n<p>Usually alignment, a damaged coil or a loose connector.<\/p>\n<p>An intermittent charge that stops when the phone is moved suggests a coil connection that is not secure. A charge that stops when the phone warms up suggests a different fault.<\/p>\n<p>Test with the phone still and then with a slight movement. The pattern tells you which part to inspect.<\/p>\n<h2>How do you inspect a rear repair?<\/h2>\n<p>Check the coil, the magnets and the adhesive.<\/p>\n<p>A back glass replacement can leave the coil misaligned, the magnet array shifted or the flex pinched. Open the device and check all three before ordering a new coil.<\/p>\n<p>The rear repair method is described in <a href=\"\/blogs\/iphone-back-glass-replacement\/\">iPhone back glass replacement<\/a>.<\/p>\n<h2>What do you tell the customer?<\/h2>\n<p>What works, what does not, and what the repair involves.<\/p>\n<p>If cable charging works and wireless does not, say so. That narrows the fault to the coil or the wireless circuit.<\/p>\n<p>If the fault is a case or a charger, say that too. A customer who is sold a repair they did not need will not return.<\/p>\n<h2>How do you price the repair?<\/h2>\n<p>The coil, the rear glass work and the test.<\/p>\n<p>A coil replacement is a moderate job that involves opening the device and removing the back glass. Price the labour as well as the part.<\/p>\n<p>If the fault is on the board, the price changes entirely. Quote the diagnosis first.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Symptom<\/th>\n<th>Likely cause<\/th>\n<th>Test<\/th>\n<\/tr>\n<tr>\n<td>No charge at all<\/td>\n<td>Charger or coil<\/td>\n<td>Known charger, another phone<\/td>\n<\/tr>\n<tr>\n<td>Charges off-centre only<\/td>\n<td>Alignment<\/td>\n<td>Reposition without a case<\/td>\n<\/tr>\n<tr>\n<td>Stops when moved<\/td>\n<td>Coil connector<\/td>\n<td>Inspect the flex<\/td>\n<\/tr>\n<tr>\n<td>Slow charge<\/td>\n<td>Case or weak cable<\/td>\n<td>Remove the case, try another cable<\/td>\n<\/tr>\n<tr>\n<td>Works on plain pad only<\/td>\n<td>Magnet array<\/td>\n<td>Check the ring behind the glass<\/td>\n<\/tr>\n<tr>\n<td>No charge after rear repair<\/td>\n<td>Coil misaligned<\/td>\n<td>Compare with the original<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The table is a quick reference, not a substitute for the tests. A charger that works with another phone is the fastest way to rule out the accessory.<\/p>\n<p>Case thickness varies more than customers expect. A case marketed as &#8220;wireless charging compatible&#8221; can still be too thick for a 15W charger.<\/p>\n<p>A magnetic charger that holds the phone but does not charge usually points at a damaged magnet ring or a coil that has shifted. Both are visible once the back glass is off.<\/p>\n<p>Test the wireless charge at the end of a rear repair as a standard step. It takes a minute and catches the fault before the customer does.<\/p>\n<p>Record the charger used and the result. If the customer&#8217;s charger is the problem, the note settles the conversation.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Check<\/th>\n<th>How<\/th>\n<th>What it proves<\/th>\n<\/tr>\n<tr>\n<td>Known charger<\/td>\n<td>Another phone<\/td>\n<td>Charger works<\/td>\n<\/tr>\n<tr>\n<td>No case<\/td>\n<td>Direct placement<\/td>\n<td>Case is not blocking<\/td>\n<\/tr>\n<tr>\n<td>Alignment<\/td>\n<td>Centre the phone<\/td>\n<td>Coil overlap<\/td>\n<\/tr>\n<tr>\n<td>Timed charge<\/td>\n<td>Ten minutes<\/td>\n<td>Charge rate<\/td>\n<\/tr>\n<tr>\n<td>Coil flex<\/td>\n<td>Visual inspection<\/td>\n<td>Tear or crease<\/td>\n<\/tr>\n<tr>\n<td>Magnet ring<\/td>\n<td>Compare position<\/td>\n<td>Array intact<\/td>\n<\/tr>\n<tr>\n<td>Board<\/td>\n<td>Known coil<\/td>\n<td>Circuit fault<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The checks move from the cheapest to the most expensive, which is the right order for both the shop and the customer.<\/p>\n<p>Most wireless faults are solved before the device is opened.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Part<\/th>\n<th>Function<\/th>\n<th>Failure sign<\/th>\n<\/tr>\n<tr>\n<td>Charger coil<\/td>\n<td>Sends power<\/td>\n<td>No charge on any phone<\/td>\n<\/tr>\n<tr>\n<td>Phone coil<\/td>\n<td>Receives power<\/td>\n<td>No charge on any charger<\/td>\n<\/tr>\n<tr>\n<td>Magnet ring<\/td>\n<td>Aligns the phone<\/td>\n<td>Only works off-centre<\/td>\n<\/tr>\n<tr>\n<td>Coil flex<\/td>\n<td>Connects to the board<\/td>\n<td>Intermittent charge<\/td>\n<\/tr>\n<tr>\n<td>Shield<\/td>\n<td>Holds the contact<\/td>\n<td>Works only when pressed<\/td>\n<\/tr>\n<tr>\n<td>Charging circuit<\/td>\n<td>Regulates power<\/td>\n<td>Coil good, no charge<\/td>\n<\/tr>\n<tr>\n<td>Case<\/td>\n<td>Protects the phone<\/td>\n<td>Blocks or slows charge<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Each part has a distinct failure sign, which is why the tests can be ordered rather than guessed.<\/p>\n<p>A charger that fails on every phone is easy to identify. A phone that fails on every charger is also easy, once a known-good charger is used.<\/p>\n<p>The hard cases sit in between: a phone that charges on one pad but not another, or a case that works in winter and fails in summer.<\/p>\n<p>Record the charger model and the case when the customer reports an intermittent fault. Those two details explain most of the difficult cases.<\/p>\n<p>A phone that charges on a flat pad but not on a stand is usually an alignment problem, not a coil fault.<\/p>\n<p>A phone that charges slowly on every pad may have a coil that is partially damaged, or a rear repair that left the coil misaligned.<\/p>\n<p>Compare the charging rate with a known device before and after any rear work. The rate is a better measure than the presence of a charge.<\/p>\n<p>Record the rate in the job sheet. It turns a vague complaint into a number the next technician can use.<\/p>\n<p>A phone that charges on a magnetic charger but not a flat pad usually has an alignment or coil-position issue.<\/p>\n<p>A phone that charges on a flat pad but not a magnetic one may have a damaged magnet ring or a case that interferes.<\/p>\n<p>Test both types of charger before deciding which part to inspect.<\/p>\n<p>A customer who only owns one type may never have noticed the fault until they changed accessory.<\/p>\n<p>Keep a known magnetic charger and a known flat pad on the bench for testing.<\/p>\n<p>Two chargers and two phones cover almost every wireless diagnosis.<\/p>\n<p>Record which combination failed, because the answer points directly at the part. Two known chargers and two known phones cover almost every wireless diagnosis, and a pair of known chargers on the bench is enough for most days.<\/p>\n<h2>What is the one rule for wireless charging?<\/h2>\n<p>Test the charger, the case and the alignment before the coil.<\/p>\n<p>Most wireless charging complaints are solved without opening the device. A known charger, no case and a central placement rule out the simple causes first.<\/p>\n<p>Around it sit the ordinary disciplines: test with another phone, check the coil flex, inspect a previous rear repair and quote the diagnosis separately. Magnetic charging standards are described in <a href=\"\/blogs\/magsafe-and-qi2-compatibility\/\">MagSafe and Qi2 compatibility<\/a>, back glass work in <a href=\"\/blogs\/iphone-back-glass-replacement\/\">iPhone back glass replacement<\/a>, and charger choice in <a href=\"\/blogs\/fast-chargers-and-gan\/\">fast chargers and GaN<\/a>. Consumer contracts sit under the <a href=\"https:\/\/www.legislation.gov.uk\/ukpga\/2015\/15\/contents\" rel=\"nofollow\">Consumer Rights Act 2015<\/a>, disposal under the <a href=\"https:\/\/www.legislation.gov.uk\/uksi\/2013\/3113\/contents\" rel=\"nofollow\">Waste Electrical and Electronic Equipment Regulations 2013<\/a>, product safety with the <a href=\"https:\/\/www.gov.uk\/government\/organisations\/office-for-product-safety-and-standards\" rel=\"nofollow\">Office for Product Safety and Standards<\/a>, electrical safety under <a href=\"https:\/\/www.hse.gov.uk\/electricity\/\" rel=\"nofollow\">HSE electrical safety<\/a>, and customer records under <a href=\"https:\/\/ico.org.uk\/for-organisations\/\" rel=\"nofollow\">ICO guidance for organisations<\/a>.<\/p>\n<figure class=\"image-block\"><a href=\"\/iphone_0_1_2\/back-cover_0_1_2\"><br \/>\n<img decoding=\"async\" src=\"\/image\/cache\/catalog\/3000-3999\/3391\/3391-1-600x315w.jpg\" alt=\"Replacement wireless charging flex and flash cable assembly\" width=\"600\" height=\"315\" \/><br \/>\n<\/a><figcaption>The coil and the magnet array sit behind the back glass, so a rear repair can disturb both.<\/figcaption><\/figure>\n<div class=\"faq\">\n<h2>FAQ<\/h2>\n<p class=\"faq-q\">Why does my phone only charge wirelessly sometimes?<\/p>\n<p class=\"faq-a\">Intermittent charging usually means alignment, a thick case or a coil connection that is not secure. Try a known charger without a case before opening the device.<\/p>\n<p class=\"faq-q\">Can a case stop wireless charging?<\/p>\n<p class=\"faq-a\">Yes. A thick case, a metal plate or a card holder can move the coil out of range or block the field. Remove the case and test again.<\/p>\n<p class=\"faq-q\">Does a back glass replacement affect wireless charging?<\/p>\n<p class=\"faq-a\">It can. The coil and magnet array sit behind the glass, and a misaligned or pinched flex will stop or weaken the charge.<\/p>\n<p class=\"faq-q\">When is wireless charging a board fault?<\/p>\n<p class=\"faq-a\">When a known-good coil and charger still fail. That points at the wireless charging circuit on the board, which needs board-level diagnosis.<\/p>\n<\/div>\n<div class=\"cta\">\n<p><strong>Coils and chargers that line up.<\/strong> Digi4u stocks wireless charging parts and magnetic chargers with the model stated.<\/p>\n<p><a href=\"\/wholesale\">Open a trade account<\/a><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Wireless charging fails in a quieter way than a cable. There is no error message and no damaged connector to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"two_page_speed":[],"footnotes":""},"categories":[116],"tags":[413,95,303,305,140],"class_list":["post-10314","post","type-post","status-publish","format-standard","hentry","category-charging-power","tag-coil","tag-diagnostics","tag-magsafe","tag-qi2","tag-wireless-charging"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - 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