Bad baseband or modem?

Question

iPhone 7

2016년 9월 16일 출시. Model 1660, 1778. GSM 또는 CDMA / 32, 128 또는 256 GB / 로즈 골드, 금색, 은색, 검정색, 칠흑색으로 제공됩니다.

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Ronan @ronan0s

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게시일: 2020년 5월 27일

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Bad baseband or modem?

I did a housing swap on an iPhone 7 and LTE would be acting weird. Like right now I did a dfu restore and it’s saying no service when there’s no SIM card installed. I’ve tried to change the antenna that sticks to the speaker and that didn’t fix it. Also LTE turns off when I’m not using the phone but sometimes when I unlock it the signal comes back, weird. I’m stumped as I know how to fix phones but I’ve never seen this before. It also says iccid unknown.

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Leslie Leslie @leslieleslie 평판: 3.1k 5 2 1 · Answer 1 · 2020-05-29T01:34:03-07:00

Leslie Leslie @leslieleslie

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Try to put it back in the old housing, to determin it is the logic board/antenna flex or backhousing what is causing this.

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I’ve confirmed at this point the Logic Board is toast I’ve powered the phone on, tried restoring with only the screen, dock flex and obviously the battery. On the hunt for a donor iPhone now.

Ronan 의 2020년 5월 30일

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iPhone 7

Bad baseband or modem?

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