iPhone XR 不開機 救資料 維修心得 - iOS
By Harry
at 2021-12-06T20:49
at 2021-12-06T20:49
Table of Contents
哈囉~大家好,今天來跟大家分享 iPhone XR 不開機維修心得
機主表示手機突然黑畫面,且充電沒反應,主要是想要救資料
維修開始-----------------------------------------------------
首先呢,先看看充電有沒有電流
https://i.imgur.com/emlDd5v.jpg
經測試後發現,充電會一瞬間有小電流後又歸零
下一個步驟老觀眾都知道了,先拆機!上電測量!
結果發現是上電大電流
https://i.imgur.com/JEdsdDl.jpg
電流已經超過1A了
接下來我們還要排除是外部配件引起的上電大電流還是主機板本身造成的
https://i.imgur.com/h9P4eCr.jpg
拆光光後,單獨對主機板接上電源,依舊是上電大電流,不過電流跟之前相比略小了一些
經過量測後發現有一路阻值異常
https://i.imgur.com/3viarxS.jpg
阻值為四個零表示線路已經接地了
https://i.imgur.com/tMDvXlF.jpg
既然已經知道是哪一線路出問題了,那接下來我們就可以透過對此故障線路加上低於本身
耐壓值的電壓來試圖尋找發熱的元件
派出我們的熱顯像儀~~~~
https://i.imgur.com/oYq57G8.jpg
很明確地可以看的出來,左中的部分有一個紅點,熱顯像標出的溫度為67.5度
透過熱顯像發現,發熱的位置在背面,撕開貼紙後電容燒掉的味道zer一下就上來了,肉
眼就看到了這個小壞店
https://i.imgur.com/JfsphUe.jpg
之後就是去掉損壞的電容
https://i.imgur.com/pizdCdh.jpg
再次量測故障線路,組值已經恢復了
https://i.imgur.com/oYqJ4bQ.jpg
接電也不漏電了~~~
https://i.imgur.com/ksELSsW.jpg
之後就是基本的~輕鬆點亮
https://i.imgur.com/5biIpAz.jpg
因為沒有連上網路,所以時間還停在損壞的當下沒有更新~~
機主沒有提供密碼,所以其他功能就無法做測試了~
除了資料保住了以外,連機器也保住了,可以省一筆換手機的錢囉
維修結束------------------------
Ps:有些人會問為什麼電容會損壞,有幾種可能,之前摔的後遺症,或是本身電容的良率
問題,有時候真的是運氣問題,當然定時的做資料備份也是很重要的,但大部分的人都不
太會這麼做,只能說資料無價阿!
--
--
機主表示手機突然黑畫面,且充電沒反應,主要是想要救資料
維修開始-----------------------------------------------------
首先呢,先看看充電有沒有電流
https://i.imgur.com/emlDd5v.jpg
經測試後發現,充電會一瞬間有小電流後又歸零
下一個步驟老觀眾都知道了,先拆機!上電測量!
結果發現是上電大電流
https://i.imgur.com/JEdsdDl.jpg
電流已經超過1A了
接下來我們還要排除是外部配件引起的上電大電流還是主機板本身造成的
https://i.imgur.com/h9P4eCr.jpg
拆光光後,單獨對主機板接上電源,依舊是上電大電流,不過電流跟之前相比略小了一些
經過量測後發現有一路阻值異常
https://i.imgur.com/3viarxS.jpg
阻值為四個零表示線路已經接地了
https://i.imgur.com/tMDvXlF.jpg
既然已經知道是哪一線路出問題了,那接下來我們就可以透過對此故障線路加上低於本身
耐壓值的電壓來試圖尋找發熱的元件
派出我們的熱顯像儀~~~~
https://i.imgur.com/oYq57G8.jpg
很明確地可以看的出來,左中的部分有一個紅點,熱顯像標出的溫度為67.5度
透過熱顯像發現,發熱的位置在背面,撕開貼紙後電容燒掉的味道zer一下就上來了,肉
眼就看到了這個小壞店
https://i.imgur.com/JfsphUe.jpg
之後就是去掉損壞的電容
https://i.imgur.com/pizdCdh.jpg
再次量測故障線路,組值已經恢復了
https://i.imgur.com/oYqJ4bQ.jpg
接電也不漏電了~~~
https://i.imgur.com/ksELSsW.jpg
之後就是基本的~輕鬆點亮
https://i.imgur.com/5biIpAz.jpg
因為沒有連上網路,所以時間還停在損壞的當下沒有更新~~
機主沒有提供密碼,所以其他功能就無法做測試了~
除了資料保住了以外,連機器也保住了,可以省一筆換手機的錢囉
維修結束------------------------
Ps:有些人會問為什麼電容會損壞,有幾種可能,之前摔的後遺症,或是本身電容的良率
問題,有時候真的是運氣問題,當然定時的做資料備份也是很重要的,但大部分的人都不
太會這麼做,只能說資料無價阿!
--
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