6s와 유사한 하드웨어 사양의 4-inch iPhone은 2016년 3월에 출시되었습니다. 16/64GB 저장 옵션 및 은색, 스페이스 그레이, 금색 또는 로즈 골드로 제공됩니다. 모델 A1662 및 A1723.

576 질문 전체 보기

short on 5v7 line

@refectio i bought a liquid damaged se the other day and recieved it this morning. on dc its drawing over half an amp which i would think would be enough to show the apple logo. testing for shorts i found that PP5V7_SAGE_AVDDH is short to ground, i removed c4323 and c4005 as they are the areas that looked a bit damaged. so having no image don't even think i have backlight but havent checked that im guessing that chestnut could be the culprit but i dont really want to remove it unless i need to. would you say chestnut or something else

update: removed chestnut and the short is gone

does your se schematics work on blackfish as i get an error with them

답변되었습니다! View the answer 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 1


so i reballed chestnut and now getting even less power at max 0.08 amps. removed chestnut again and still the same, on pp_gpu c1100, c2018 and c2017 will draw full amps (2) from dc but the rest of the caps draw less. any ideas @refectio pp_gpu was the only line shorting to ground aswell after chestnut was sorted removed said caps and a coil still short

의 답변

의견 추가하세요

US$100 이상 또는 Pro Tech Toolkit을 포함한 모든 주문의 배송은 무료입니다!

상점 둘러보기

1개의 답변

선택된 해법

Are you certain PP_GPU is shorted...it is a vey low resistance line so if you don't look at the measurement, you can be fooled by the continuity test. If you have a true short (0 Ohms), then it could either be the PMIC or the CPU, assuming none of the caps on the line are causing the short. I have seen several shorted CPU's recently on water damaged devices. In the end, I removed the CPU and measured it directly on chip to confirm.


The voltages should all be on the PMIC page. Picture below is iPhone 6S.

Block Image

해당 답변은 도움이 되었습니까?

점수 2


think i measured but cant remember exact readings, so why would the 3 caps on the line take a full 2 amps on the actually pp_gpu side. iv since taken of cpu and pmic, not lookin great around pmic tho tweezers took a slip and components everywhere. i ordered a used board on ebay that i dont know much about until it arrives, it says could be liquid damaged but indicators are still white, could be icloud lock but will see in a few days

의 답변

@refectio got the se board in today along with a 6s, the se is booting but no touch. i can see the 6s booting with dc but when i put on the lcd and or dock connector it wont go past 0.43 amps yet it will go above 1 amp without them

의 답변

Probably PMIC issues but you will have to probe them a bit to understand what works and what doesn't.

의 답변

does schematics not show what the voltages are supposed to be as i cant see them

의 답변

I can see them fine in the SE schematic I have.

의 답변

13에 댓글 더 나타내기

의견 추가하세요

귀하의 답변을 추가하십시오

daniel 가/이 대단히 고마워 할 것입니다.
조회 통계:

지난 24시간: 0

지난 7일: 0

지난 30일: 5

전체 시간: 189