주요 콘텐츠로 건너뛰기

The Galaxy A20s is a midrange Android smartphone released by Samsung in September 2019. Identifiable by model numbers SM-2070, SM-207F/DS, and SM-207M/DS.

21 질문 전체 보기

Replace screen. still not functioning.

My A20 hand an encounter with a wall. the wall won. Cracked the screen. Ordered and replaced the screen. ( Something I’ve done quite a few times on J3’s…) it seems to power on, but no screen at all. when plugged in I get the charging chime… I’ve examined the ribbon cables with a magnifying glass, there does not seem to be any damage there. I ’spose it could have damaged CPU board… what am I missing?

이 질문에 답하기 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 2
1 Comment

Hey bro I replace the screem and it won't show anything I feel it vibrate when I touch the power button I also try back the old screem and still nothing but it's powering up no display same here please help

댓글 달기

답변 1개

가장 유용한 답변

Hi @mlohre ,

With the phone switched on, try shining a torch at an angle close to the screen and check if there are any images showing. They will be very faint if they're there.

If they are there, then there is a backlight problem. Either in the display (new display I know but still...) or perhaps with the backlight power supply from the systemboard.

I don't know the phone but with other makes of phone there is a backlight fuse close to the display cable connector on the systemboard.

You may have to use a DMM and start checking components close to the connector and see if any are open circuit. Do this with the power disconnected. If any are open circuit it may be a fuse but it could also be a capacitor and you would have to know how to test them to be sure.

If there are no images showing then the problem may be the systemboard or then again it may be a faulty new display. The only way around this is maybe to temporarily try another known working compatible display to prove it one way or the other.

해당 답변은 도움이 되었습니까?

점수 2
댓글 달기

귀하의 답변을 추가하세요

Marcus Lohre 님은 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 3

7일 전: 22

30일 전: 151

전체 시간: 1,433