Screen occasionally turns on, but is mostly black. Phone still works?

Question

iPhone 6s

苹果官方于2015年9月25日正式发售iPhone6S A1688/A1633机型。此机型的修理方式与先前几代差不多, 需要螺丝起子及撬棍工具。同时也适用GSM or CDMA/16, 64 or 123 GB/ 银色, 金色, 深空灰色, 玫瑰金色等机型。

2688 个问题查看全部

Andrew Truglia @andytrugs

声誉积分: 23

2

发帖于: 2017年12月23日

更多选项

Screen occasionally turns on, but is mostly black. Phone still works?

Repairing a 6S that had a smashed screen. I’ve replaced it with a new one. Charged the battery up and turned it on. The screen lights up for half a second at most then goes black again. I’ve tried a second replacement screen and had the same issue. I know the phone is working as it vibrates when I turn it on and I’ve managed to activate voiceover.

I have however noticed that there is a slight bend in the phone...

I’m assuming this is a board issue, but really hoping it’s not?

已回答！ 显示答案我也有这个问题

这是一个好问题吗？

是否

得分 1

添加一条评论

2个答案

已选择的解决方案

Minho @refectio

声誉积分: 221.4千

15

289

806

发帖于: 2017年12月23日

更多选项

Did you disconnect the battery prior to disconnecting the screen assembly? This is a critical step that many DIY fixers skip and the result is often a blown backlight circuit. To test for this failure, plug in your iPhone and shine a bright flashlight on the screen. If you can see a dim image, then your backlight circuit is blown and it will require a micro-soldering repair.

这个答案有帮助吗？

是否

得分 3

1条评论:

Hey, tested this out and yep, backlight circuit is fried. I’m based in the uk, can you recommend anyone to do this kind of repair?

由 Andrew Truglia 完成的 2017年12月27日

添加一条评论

Hey, tested this out and yep, backlight circuit is fried. I’m based in the uk, can you recommend anyone to do this kind of repair? — Andrew Truglia

Erin Baker @erinbaker 声誉积分: 25 1 · Answer 1 · 2017-12-23T07:24:27-07:00

Erin Baker @erinbaker

声誉积分: 25

1

发帖于: 2017年12月23日

更多选项

you might have something wrong with the software and you can hard reset it. To do a hard reset, press and hold the power button (also known as the Sleep / Wake button) and the Home button (the circular button below the display) together for at least 10 seconds. On the iPhone 7 and 7 Plus, you perform a hard reset by pressing and holding the volume down button and the power button at the same time until the you see the Apple logo appear on the screen.

If the Apple logo appears on the screen, there probably isn’t a problem with your iPhone’s hardware — it was a the software

这个答案有帮助吗？

是否

得分 0

1条评论:

Hey Erin,

I’ve tried a couple of separate screens now, multiple times, and checked that all the display cables were properly connected every time. I don’t think the issue is there.

Thanks for your help though!

由 Andrew Truglia 完成的 2017年12月23日

添加一条评论

iPhone 6s

Screen occasionally turns on, but is mostly black. Phone still works?

2个答案

Update (12/23/2017)

添加你的答案