拆出主板,发现接电大短,电流0.8A,明显是短路引起的不开机。用手触摸发现电源U4000发烫,果断松香大法,发现电源IC周边松香融化,先拆下芯片,发现问题依旧。...
https://www.chinafix.com/wp/wp-content/uploads/2019/07/071319_0830_iPhone6sPlu1.png 更换新的U2装机测试充电正常,充了一会手机放那里不使用,...
https://www.chinafix.com/wp/wp-content/uploads/2019/07/071219_0924_iPhone6s18V1.png 然后上电测试,主板依然发烫,尤其是CPU这块特别烫。用...
【机器型号】:iPhone 6SP【故障现象】:不开机、不充电、不连机 https://www.chinafix.com/wp/wp-content/uploads/2019/07/071019_0813_iPhone6sPlu1.png...
https://www.chinafix.com/wp/wp-content/uploads/2019/07/070619_0642_iPhone7Plus6.jpg ...
iPhone6P手机扩容后不开机故障维修 【故障机型】iPhone 6p(64GB)【故障现象】手机扩容后不开机【故障分析】 隔壁店同行扩容后手机不开机,...
今天收到客户送修的一台iPhone8,描述的故障是手机不开机。拆下主板,夹可调电源小电流不开机。检查主板发现是PC-V0板层,此板容易多处断线,这是...
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