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Addr: Jinxin maintenance, no.1-191, Wanshang international computer digital port, Chengguan District, Lanzhou City, Gansu Province
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Your Current Location:Home > Case > iPhone手机维修 > 苹果iPhone7plus手机插卡无服务维修
Case Name:苹果iPhone7plus手机插卡无服务维修
Case Detailed:

机器型号:iPhone 7plus

故障描述:无服务,以前有过维修此故障


检测结果:*#06#不出串号

维修过程:拆机发现机器有过明显进液体腐蚀后维修痕迹,基带供电有被修过,

取下CPU屏蔽罩发现基带也有被修过,检测后直接拆掉发现主板掉点严重,


逐个检测后都是空点,重新植锡装回基带芯片,开机测试正常,故障应该是维修后虚焊造成,顺便芯片周围打胶固定。

维修疑问:

1、如果基带芯片本身损坏可以更换不

答:不可以直接更换,因为基带芯片、码片、CPU之间有加密

维修热线:151 9315 3138 金


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Addr:Jinxin maintenance, no.1-191, Wanshang international computer digital port, Chengguan District, Lanzhou City, Gansu Province  Tel:0931-8699388    
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