iPhone 6s not turning on after DIY repair

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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。

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Chris Dan @itsdan

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发帖于: 2019年1月7日

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iPhone 6s not turning on after DIY repair

Dear ifixit family,

I have a dead iphone 6s that I tried to repair myself, my first dead-phone repair.

The initial problem is the phone turn off by itself and won’t charge or reboot. I tried to reset it (power+home button combo) but no luck. What I found is that the phone is undetected by the itunes.

My first try is to replace the battery but still have no response. I thought the battery is flat so I charge it separately and put it back but it still not turning on.

As the battery is fine and with charged battery it still not turned on or detected on itunes, I suggest the problem is board level. So I try to replace it. But again, it’s not working with the same issues (not turning on. not charging, undetected on itunes).

So I run out of ideas now and need some help, anything that I should try? I really want to fix this phone .

Thank you.

P.s. I think I will try to replace the lightning port. I will update the results.

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daniel @tech_ni

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发帖于: 2019年1月7日

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if the phone turned off by itself then its probably a logic board issue and changing the charge port wont fix it

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Thank you for the quick response. I did try to replace the board with a tested good board, but the issue persist. What do you think?

由 Chris Dan 完成的 2019年1月7日

Do a bare-bones test which is basically unplugging all non-major components such as the front camera, home button interconnect cable (The one coming from the screen not the button).

See if it can turn on, you can also try switching on without a screen if you want.

由 Ben 完成的 2019年1月7日

Thank you Ben for your response. I have tried to do a bare-bone test for every combination of components including camera , screen, ports, even wifi antennas but it still can't turn on. I guess there are multiple components failure that makes the phone refusing to boot properly, or maybe even the cables. There are nothing left to do then.

由 Chris Dan 完成的 2019年1月10日

Chris Dan if you have a multimeter check vcc_main. You should find helpful videos on you.

由 daniel 完成的 2019年1月10日

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Thank you for the quick response. I did try to replace the board with a tested good board, but the issue persist. What do you think? — Chris Dan
Do a bare-bones test which is basically unplugging all non-major components such as the front camera, home button interconnect cable (The one coming from the screen not the button).

See if it can turn on, you can also try switching on without a screen if you want. — Ben
Thank you Ben for your response. I have tried to do a bare-bone test for every combination of components including camera , screen, ports, even wifi antennas but it still can't turn on. I guess there are multiple components failure that makes the phone refusing to boot properly, or maybe even the cables. There are nothing left to do then. — Chris Dan
Chris Dan if you have a multimeter check vcc_main. You should find helpful videos on you. — daniel

Jessica Dent @jdent 声誉积分: 181 3 · Answer 1 · 2019-01-10T15:38:16-07:00

Jessica Dent @jdent

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If you’ve not tried a new charging port that would be my next step

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iPhone 6s

iPhone 6s not turning on after DIY repair

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