주요 콘텐츠로 건너뛰기

기기를 수리하세요

수리할 권리

상점

4세대 iPhone의 CDMA 버전. 수리는 간단하지만 앞면 유리와 LCD를 하나의 유닛으로 교체해야 합니다. 16 또는 32GB / Model A1349 / CDMA 호환성.

428 질문 전체 보기

Causes for both ambient light & proximity sensors not working?

Have an unusual repair job here, Verizon CDMA model iPhone 4 16GB factory white phone coming in having both ambient light and proximity sensors inoperative. Small shroud gasket from factory is intact (this is the thing people try to replicate with the black electrical tape). UV filter over proximity sensor from factory is intact. Believe the front screen to be non-OEM, back glass looks OEM. Phone appears unmolested internally (all screws of the right size in the right place). Water damage sensors white inside and on dock, red on headphone jack.

Replaced with known working power/sensor flex assembly from test phone. Again, both sensors inoperative in phone under repair. Everything else about the test phone is in normal working order.

Have swapped front glass from known working phone, still no joy on test phone with either sensor.

What could be potential causes for this problem?

이 질문에 답하세요 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 1

댓글:

OK, I solved my own question. Posting here for others. So this kind of problem, as I suspected, was due to logic board physical damage. Most likely when a previous person changed out the original front screen for the current aftermarket one.

There was an SMD component missing, knocked off, the board adjacent to the connector that was the cause of the inoperative states. Put it under the microscope to confirm, and transferred this component from a boneyard board and it's working fine now.

의견 추가하세요

필수 도구 키트

최고의 소형 키트에서 가장 유용한 도구.

지금 쇼핑하기

필수 도구 키트

최고의 소형 키트에서 가장 유용한 도구.

지금 쇼핑하기

답변 2개

Your Logic Board May Have Some Issues. I would get another and replace it.

해당 답변은 도움이 되었습니까?

점수 0
의견 추가하세요

yea logic boards are some easy come by lmao

해당 답변은 도움이 되었습니까?

점수 0
의견 추가하세요

귀하의 답변을 추가하십시오

drshock 가/이 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 0

7일 전: 0

30일 전: 4

전체 시간: 878