{"id":2307,"date":"2021-09-06T11:22:55","date_gmt":"2021-09-06T11:22:55","guid":{"rendered":"http:\/\/192.168.2.19:8666\/?p=1"},"modified":"2024-10-10T17:15:02","modified_gmt":"2024-10-10T09:15:02","slug":"iphone-12-pro-max-overheating-issue","status":"publish","type":"post","link":"https:\/\/rewawp.iamtareq.com\/it\/iphone-12-pro-max-overheating-issue\/","title":{"rendered":"How to Fix iPhone 12 Pro Max Overheating Issue with Soldering Lugs"},"content":{"rendered":"

Today we will share how to fix iPhone 12 Pro Max overheating or temperature warning issue. The phone has been dropped before and the screen is cracked. After boot-up, the phone shows a temperature warning.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Next, we take apart the phone for testing. Disconnect the flex cables. Remove the motherboard. In the first place, we check if the motherboard is deformed. The motherboard is not deformed.<\/p>\n\n\n\n

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It can be seen under the microscope that the motherboard has pseudo-soldering. Then we need to separate the motherboard.<\/p>\n\n\n\n

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Detach the foam and plastic part. Put the motherboard on the 165 \u00b0C Piattaforma di riscaldamento<\/a> to heat. Since the middle layer of iPhone 12 lineup adopts middle-temperature solder paste for soldering, we need to assist the heating with a Hot Air Gun at 330 \u00b0C. Try to pry up the logic board with a Pry Blade while heating. If the logic board becomes loose, remove it. Then remove the signal board.<\/p>\n\n\n\n

\"Fix<\/figure>\n\n\n\n

It can be seen under the microscope that pads on the logic board are missing. Then we need to repair the bonding pads. Clean the bonding pads with Saldatore<\/a> at 380 \u00b0C and Solder Wick. Next, clean the bonding pads with PCB Cleaner.<\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

Then scrape the missing pads to show the circuits with a Sculpture Knife. Please pay attention not to damage the GND while scraping.<\/p>\n\n\n\n

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Clean the bonding pads with PCB Cleaner. Apply tin to the bonding pads with a Soldering Iron.<\/p>\n\n\n\n

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Then we put the Soldering Lugs<\/a> in position. Apply some Paste Flux. Heat with a Soldering Iron to solder. Clean the bonding pads with PCB Cleaner.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Apply some Solder Mask to the bonding pads. Then solidify with a UV Lamp. After solidifying, remove excess solder mask with a Sculpture Knife to show the pads.<\/p>\n\n\n\n

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Clean the bonding pads with PCB Cleaner. Then clean the bonding pads with Soldering Iron and Solder Wick. Keep cleaning the bonding pads with a Dust-free Wipe.<\/p>\n\n\n\n

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Next, we reball the signal board. Attach the signal board to the holder. Put the reballing stencil in position. Apply some low-temperature Solder Paste evenly. Remove excess solder paste.<\/p>\n\n\n\n

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Detach the reballing stencil. Put the motherboard on the 165 \u00b0C Heating Platform to heat for recombination. Remove the motherboard after it has cooled for 5 minutes.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Install the motherboard for testing. Connect the screen. The phone turns on normally. The temperature warning has disappeared.<\/p>\n\n\n\n

\"\"<\/figure>","protected":false},"excerpt":{"rendered":"

Today we will share how to fix iPhone 12 Pro Max temperature warning issue. The phone has been dropped before and the screen is cracked. After boot-up, the phone shows a temperature warning.<\/p>","protected":false},"author":1,"featured_media":42671,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,158],"tags":[21,258,259],"class_list":["post-2307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","category-iphone-guide","tag-iphone","tag-iphone-12-pro-max","tag-soldering-lugs"],"_links":{"self":[{"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/posts\/2307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/comments?post=2307"}],"version-history":[{"count":0,"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/posts\/2307\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/media\/42671"}],"wp:attachment":[{"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/media?parent=2307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/categories?post=2307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewawp.iamtareq.com\/it\/wp-json\/wp\/v2\/tags?post=2307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}