{"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":"bucle-de-arranque-en-iphone-7-y-no-es-reconocido-por-la-computadora","status":"publish","type":"post","link":"https:\/\/rewa.tech\/es\/iphone-7-boot-loop-and-can-not-be-recognized-by-computer\/","title":{"rendered":"Bucle de arranque en iPhone 7 y sin conexi\u00f3n con el ordenador"},"content":{"rendered":"<p class=\"MsoNormal\"><b><span style=\"font-family: Calibri; font-size: 14pt;\">Fen\u00f3meno del mal funcionamiento <\/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;\">Bucle de arranque en iPhone 7 y sin conexi\u00f3n con el ordenador<\/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;\">Soluci\u00f3n de problemas<\/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;\">Debido a que el tel\u00e9fono no se puede conectar a la computadora, podemos concluir que el problema podr\u00eda ser del circuito USB. Saque la placa base y compruebe si hay alguna corrosi\u00f3n o deformaci\u00f3n, la placa base se ve bien. <\/span><\/p>\n<p class=\"MsoNormal\" style=\"line-height: 20.0000pt; mso-line-height-rule: exactly;\"><span style=\"font-family: Calibri; font-size: 12pt;\">Contin\u00fae midiendo los valores de los diodos en los condensadores alrededor del CI USB U4001, el resultado medido es el siguiente<\/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;\">El valor del diodo en el condensador C4004 es 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;\">El valor del diodo en C4002 es 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;\">El valor del diodo en L4021 y L4022 es el mismo valor 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;\">Por lo tanto, todos los valores de los diodos son 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;\">Por fin, comprobamos el condensador C4005, el valor era 0, lo cual era 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=\"Bucle de arranque del iPhone 7 y no puede ser reconocido por la computadora\" 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;\">Retire el condensador y volv\u00ed a medir el valor del diodo, el valor segu\u00eda siendo 0.&nbsp;<\/span><span style=\"font-family: Calibri; font-size: 12pt;\">Significa que el problema no proviene de 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;\"> Y este condensador estaba conectado al circuito integrado USB, despu\u00e9s de revisar el mapa de bits, el problema proviene del circuito integrado 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;\">Retire el circuito integrado (IC) USB y comprob\u00e9 el valor del diodo en el pad relacionado E6; el cortocircuito desapareci\u00f3. As\u00ed que podemos reemplazar otro circuito integrado USB y probar de nuevo; ya no hay bucle de arranque (boot loop) y tambi\u00e9n se puede conectar a la computadora; problema resuelto.<\/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;\">Resumen<\/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;\">Para los tel\u00e9fonos con m\u00e1s de un problema, podemos centrarnos en comprobar un problema primero. Por ejemplo, aqu\u00ed, para el problema de conexi\u00f3n USB, podemos centrarnos en revisarlo primero midiendo las condiciones de trabajo relevantes del USB y comprobando el valor del diodo en las almohadillas de la placa de circuito impreso (PCB); finalmente, descubrimos la causa ra\u00edz que provoca el problema de falta de conexi\u00f3n.<\/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;\">Curso de reparaci\u00f3n de la placa base del 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":{"wpai_generated_summary":"","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\/es\/wp-json\/wp\/v2\/posts\/12834","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=12834"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/12834\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media\/12835"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media?parent=12834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/categories?post=12834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/tags?post=12834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}