{"id":12834,"date":"2021-06-16T21:10:00","date_gmt":"2021-06-16T13:10:00","guid":{"rendered":"https:\/\/rewa.tech\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer\/"},"modified":"2024-05-10T15:29:16","modified_gmt":"2024-05-10T07:29:16","slug":"iphone-7-boucle-de-demarrage-et-ne-peut-pas-etre-reconnu-par-lordinateur","status":"publish","type":"post","link":"https:\/\/rewa.tech\/fr\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer\/","title":{"rendered":"Boucle de d\u00e9marrage de l'iPhone 7 et pas de connexion avec l'ordinateur"},"content":{"rendered":"<p class=\"MsoNormal\"><b><span style=\"font-family: Calibri; font-size: 14pt;\">Ph\u00e9nom\u00e8ne de dysfonctionnement <\/span><\/b><b><span style=\"font-family: Calibri; font-size: 14pt;\"><\/p>\n<p><\/span><\/b><\/p>\n<p class=\"MsoNormal\"><span style=\"font-family: Calibri;\"><span style=\"font-size: 16px;\">Boucle de d\u00e9marrage de l'iPhone 7 et pas de connexion avec l'ordinateur<\/span><\/span><\/p>\n<p class=\"MsoNormal\"><span style=\"mso-spacerun: 'yes'; font-family: \u5b8b\u4f53; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><span style=\"font-family: Calibri;\"><\/span><\/span><\/p>\n<p class=\"MsoNormal\"><b><span style=\"font-family: Calibri; font-size: 14pt;\">D\u00e9pannage<\/span><\/b><b><span style=\"font-family: Calibri; font-size: 14pt;\"><\/p>\n<p><\/span><\/b><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"mso-spacerun: 'yes'; font-family: \u5b8b\u4f53; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><span style=\"font-family: Calibri;\">B<\/span><\/span><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\">Puisque le t\u00e9l\u00e9phone ne peut pas \u00eatre connect\u00e9 \u00e0 l'ordinateur, nous pouvons conclure que le probl\u00e8me peut provenir du circuit USB. Retirez la carte m\u00e8re et v\u00e9rifiez qu'il n'y a pas de corrosion ou de d\u00e9formation, la carte m\u00e8re semble en bon \u00e9tat. <\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\">Continuer \u00e0 mesurer les valeurs des diodes sur les condensateurs autour du circuit int\u00e9gr\u00e9 USB U4001.<\/span><\/p>\n<ul>\n<li class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\">La valeur de la diode sur le condensateur C4004 est de 274<\/span><\/li>\n<li class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\">La valeur de la diode sur C4002 est de 393<\/span><\/li>\n<li class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\">La valeur de la diode sur L4021 et L4022 est la m\u00eame valeur 693<\/span><\/li>\n<\/ul>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\">Toutes les valeurs des diodes sont donc normales<\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-7th12.png\" alt=\"\" width=\"298\" height=\"215\" title=\"\">&nbsp; &nbsp;<img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-vzpil.png\" alt=\"\" width=\"322\" height=\"213\" title=\"\"><span style=\"font-family: Calibri; font-size: 12pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-d3of4.png\" alt=\"\" title=\"\">&nbsp; &nbsp;&nbsp;<img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-unec3.png\" alt=\"\" width=\"263\" height=\"201\" title=\"\"><span style=\"font-family: Calibri; font-size: 12pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-4lnkm.png\" alt=\"\" width=\"682\" height=\"383\" title=\"\"><span style=\"font-family: Calibri; font-size: 12pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\">Enfin, nous avons v\u00e9rifi\u00e9 le condensateur C4005, dont la valeur \u00e9tait de 0, ce qui \u00e9tait anormal.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-qjqls.png\" alt=\"L&#039;iPhone 7 d\u00e9marre en boucle et n&#039;est pas reconnu par l&#039;ordinateur\" width=\"560\" height=\"311\" title=\"\"><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\">Enlever le condensateur et mesurer \u00e0 nouveau la valeur de la diode, la valeur \u00e9tait toujours 0.&nbsp;<\/span><span style=\"font-family: Calibri; font-size: 12pt;\">Cela signifie que le probl\u00e8me ne vient pas du C4005.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-h5exy.png\" alt=\"\" width=\"560\" height=\"239\" title=\"\"><span style=\"font-family: Calibri; font-size: 12pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\"> Et ce condensateur \u00e9tait connect\u00e9 au circuit int\u00e9gr\u00e9 USB, apr\u00e8s avoir v\u00e9rifi\u00e9 le bitmap, le probl\u00e8me vient du circuit int\u00e9gr\u00e9 USB U4001.<\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\">Nous avons retir\u00e9 le circuit int\u00e9gr\u00e9 USB et v\u00e9rifi\u00e9 la valeur de la diode sur la pastille E6 correspondante, le court-circuit a disparu. Nous pouvons donc remplacer un autre circuit int\u00e9gr\u00e9 USB et le tester \u00e0 nouveau, sans boucle de d\u00e9marrage et il peut \u00e9galement \u00eatre connect\u00e9 \u00e0 l'ordinateur, le probl\u00e8me est r\u00e9solu.<\/span><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><\/p>\n<p><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><img decoding=\"async\" src=\"https:\/\/rewa.tech\/wp-content\/uploads\/2024\/04\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer-mrzkv.png\" alt=\"\" title=\"\"><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><b><span style=\"font-family: Calibri; font-size: 14pt;\">R\u00e9sum\u00e9<\/span><\/b><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 12.0000pt; mso-font-kerning: 1.0000pt;\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri;\"><span style=\"font-size: 16px;\">Pour les t\u00e9l\u00e9phones pr\u00e9sentant plus d'un probl\u00e8me, nous pouvons nous concentrer sur la v\u00e9rification d'un probl\u00e8me en particulier. Par exemple, dans le cas pr\u00e9sent, nous pouvons commencer par v\u00e9rifier le probl\u00e8me de la connexion USB, en mesurant les conditions de fonctionnement de l'USB et en v\u00e9rifiant la valeur de la diode sur les plots de la carte de circuit imprim\u00e9, pour finalement trouver la cause profonde du probl\u00e8me d'absence de connexion.<\/span><\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri;\"><span style=\"font-size: 16px;\"><\/span><\/span><\/p>\n<p class=\"MsoNormal\"><strong><a href=\"https:\/\/academy.rewa.tech\/courses\/iPhone-7-Motherboard-Repair-Course\"><u><span class=\"15\" style=\"font-family: Calibri; color: #0000ff; letter-spacing: 0pt; font-size: 12pt; background: #bfe6ff;\">Cours de r\u00e9paration de la carte m\u00e8re de l'iPhone 7<\/span><\/u><\/a><\/strong><span style=\"mso-spacerun: 'yes'; font-family: Calibri; mso-fareast-font-family: \u5b8b\u4f53; mso-bidi-font-family: 'Times New Roman'; font-size: 10.5000pt; mso-font-kerning: 1.0000pt;\"><\/p>\n<p><\/span><\/p><\/p>","protected":false},"excerpt":{"rendered":"<p>Malfunction Phenomenon iPhone 7 Boot Loop and No Connection With Computer Trouble Shooting Because the phone can&rsquo;t be connected to the computer, we can conclude that the problem might be from the USB circuit. Take out the motherboard and check if there is any corrosion or deformation, the motherboard looks good. Continue to measure the [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":12835,"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-12834","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\/12834","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=12834"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/12834\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media\/12835"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media?parent=12834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/categories?post=12834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/tags?post=12834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}