{"id":12902,"date":"2021-06-29T20:41:00","date_gmt":"2021-06-29T12:41:00","guid":{"rendered":"https:\/\/rewa.tech\/iphone-x-no-sim-card-detected\/"},"modified":"2024-05-10T15:25:15","modified_gmt":"2024-05-10T07:25:15","slug":"iphone-x-no-sim-card-detected","status":"publish","type":"post","link":"https:\/\/rewa.tech\/it\/iphone-x-no-sim-card-detected\/","title":{"rendered":"iPhone X non rileva alcuna scheda SIM"},"content":{"rendered":"

Fenomeno di malfunzionamento<\/span><\/b><\/p>\n

<\/span><\/b><\/p>\n

Il telefono pu\u00f2<\/span>'<\/span>t recognize the SIM card.<\/span><\/p>\n

<\/span>.<\/p>\n

\"iPhone<\/span><\/p>\n

<\/span><\/p>\n

Risoluzione dei problemi<\/span><\/b><\/p>\n

<\/span><\/b><\/p>\n

Per il <\/span>iPhone X No SIM Card Detected issue. <\/span><\/span>Take apart the phone and run the cosmetic inspection of the motherboard, and it<\/span>'<\/span>s a little bit deformed.<\/span><\/p>\n

Then we can measure the SIM card connector J_SIM_K, the measured diode value of pin J_ SIM_K_2 is OL, which is abnormal. <\/span><\/p>\n

\"\"<\/span><\/p>\n

\"\"<\/span><\/p>\n

From the circuit and bitmap, pin 8 of SIM card connector J_DEBUG_K is connected with pin F18 of U_BB_K by way of R1615.<\/span><\/span><\/p>\n

\"\"<\/span><\/p>\n

<\/span><\/p>\n

\"\"<\/span><\/p>\n

<\/span><\/p>\n

\"\"<\/span><\/p>\n

<\/span><\/p>\n

\"\"<\/span><\/p>\n

Then measured diode value of pin 8 on<\/span> <\/span>J_DEBUG_K<\/span> is 620, which is normal. <\/span><\/p>\n

So we can conclude that the line is disconnected between  <\/span>J_DEBUG_K<\/span> e  <\/span>J_ SIM_K_2.<\/span><\/p>\n

<\/span><\/p>\n

We can reconnect it with a jumper wire from Pin 8 of J_DEBUG_K to pin 2 of <\/span>J_ SIM_K_2<\/span>. <\/span><\/p>\n

After finished it, then make the upper layer and lower layer solder together, and assemble it and test again, problem resolved.<\/span><\/p>\n

\"\"<\/span><\/p>\n

<\/span><\/p>\n

Corso di riparazione della scheda madre di iPhone X<\/span><\/span><\/u><\/b><\/a><\/p>\n

<\/span><\/b><\/p>","protected":false},"excerpt":{"rendered":"

Malfunction Phenomenon The phone can’t recognize the SIM card. Trouble Shooting For the iPhone X No SIM Card Detected issue. Take apart the phone and run the cosmetic inspection of the motherboard, and it’s a little bit deformed. Then we can measure the SIM card connector J_SIM_K, the measured diode value of pin J_ SIM_K_2 is OL, […]<\/p>\n","protected":false},"author":10,"featured_media":12903,"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-12902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iphone-repair-cases"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/posts\/12902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/comments?post=12902"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/posts\/12902\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/media\/12903"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/media?parent=12902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/categories?post=12902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/it\/wp-json\/wp\/v2\/tags?post=12902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}