CPU getting really hot and barely charging

Question

iPhone 6s

2015년 9월 25일 출시. Model A1688/A1633. 수리는 이전 모델과 유사하며 스크류 드라이버 및 비집는 도구가 필요합니다. GSM 또는 CDMA / 6, 64, 또는 128GB / 은색, 금색, 스페이스 그레이 및 로즈 골드로 제공하였습니다.

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Harry @treekotv

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게시일: 2018년 2월 15일

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CPU getting really hot and barely charging

Ive just recently changed the battery on my iphone and the LCD and it was working perfectly fine, however when i changed the battery i teared the flex cable for the silent swtich. So I replaced the whole chassis and put everything back into place and replaced the flex cable but for some reason the phone turns on when I put the power cable in but does not charge/goes up a few % but does not show the lightning icon. The CPU gets really hot and the flashlight does not work.

I have removed the EMI shield for a better view of the circuit board.

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I can also note that i have used super glue on the lock button and I dont know if thats too close to the cpu causing it to get hot.

Harry 의 2018년 2월 15일

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Minho @refectio

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게시일: 2018년 2월 15일

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With so many things changed at the same time, that's a lot of variables that need to be eliminated.

Firstly, why did you change the chassis if all you did was tear the power button flex? Yet you also mentioned that after the chassis change, you replaced the flex. Was this an empty chassis or one from another device?

Fake charging is usually logic board related (Tristar) but in this case, you may have damaged the charge port flex.

At this point, you need to troubleshoot with know good parts and try only one thing at a time. Start with Lightning Port flex and battery. If you don't have access to known-good parts, you could consider asking a shop to look at this.

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Would there be any way to check if it is the charging port like disconnecting a connector?

Harry 의 2018년 2월 15일

If you disconnect the charging port, you won't be able to test if the charging works or not.

Minho 의 2018년 2월 15일

Would there be a way to test the charging port by using a multimeter?

Harry 의 2018년 2월 16일

Not really...

Minho 의 2018년 2월 17일

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I can also note that i have used super glue on the lock button and I dont know if thats too close to the cpu causing it to get hot. — Harry
Would there be any way to check if it is the charging port like disconnecting a connector? — Harry
If you disconnect the charging port, you won't be able to test if the charging works or not. — Minho
Would there be a way to test the charging port by using a multimeter? — Harry

iPhone 6s

CPU getting really hot and barely charging

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