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2014年9月19日发布的iphone 6 Plus有着比iphone 6大的5.5英寸屏幕。

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iPhone 6 plus no power at all

I have an iPhone 6 plus phone that was not used for 6+ months. It was on, battery likely drained and then left for those 6+ months unused.

I recently tried turning it on and unfortunately got no signs of life. It is dead. I suspected the battery as some research seemed to point that batteries draining completely and then being unused can cause damage. I tested it with a multi-meter and it pretty much had 0v.

So I bought a new battery off eBay for really cheap (£5). It arrived after a few days, but unfortunately has not solved the issue. The phone remains dead.

The battery I bought reads 0.5V on the multi-meter. This seems quite odd. Is it meant to be that low? The battery is rated for 3.82V.

I also measured the voltage at the battery connector with just the charger plugged in. It reads a constant 0.8V. This also seems odd.

What am I dealing with here? Is it a battery problem, or something else?

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You will need to rule out a faulty charge port first but there should be around 3.8V on the battery connector with the charge cable connected. You will need to check the PP_VCC_MAIN “0.3” and PP_BATT_VCC “0.42” circuit with your multimeter in diode mode with red probe on ground. (Without power connected of course). You know where PP_BATT_VCC is and here is the location of PP_VCC_MAIN

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Hello, thanks for your comment.

I just want to check I am looking in the right place, here's a screenshot: https://i.imgur.com/ZJRKyCl.jpg

I circled the part that looks to be somewhat in line with the arrow on your screenshot.

If that is the right part, then this is what I got in diode mode:

Circled part: 0.357V

Battery connector: 0.411V

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@hardstylez122 Both those lines are okay. I would rule out parts completely. That is a known good charge port and battery.

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@imicrosoldering

I inspected the charge port earlier and it looks like this: https://i.imgur.com/DZTQw98.png

It looks as if pin 5 of 8 is missing. I think the issue may be just a bad charging port. I've ordered one from Amazon and will be testing it out when it arrives tomorrow.

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@imicrosoldering

new charging port arrived and I'm still reading 0.8v at the battery connector. I guess it's not a charging port issue then? Must be something on the logic board itself?

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@hardstylez122 There are three IC’s on the charging circuit. Tigris, Tristar and the charging mosfet. The most likely one to fail on the 6 series is Tristar; it gives the go ahead for charging to start.

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UPDATE:

Spoke to the seller that sold me the battery. They sent me a new one and the phone now turns on. It looks like it charges as well (battery percentage does go up). It still doesn’t show the apple logo without any battery connected which I find most odd.

It did also start reboot looping every few minutes, but that seems to have stopped after I did some fiddling about. I’ll be monitoring the device to see if it starts rebooting again.

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Hey, i had a similar issue my moms S6+ suddenly shut down and after that is was not on use for almost 6months when tried charging it it won't show any logo but when i connected to a pc with itunes it said your phone is in recovery mode it need to restore,(note that the iphones screen was still off)

After restore, update and extracting, it turned on but the phone was getting an activation error so i logged into icloud to remove the phone from that account. It still didn't work i tried restoring and updating couple of times but still no luck...Btw my imei is showing up when i check with *#06# in the emergency dail pad.. please respond here if you know anything about it

Why is my iPhone 6s+ not getting activated after restore?

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Put IPhone in dfu mode and use 3u tools to restore. iTunes is trash. 3u tools will do a deep flash and restore phone plus you can activate it during flash.ake sure to have an internet connection and turn of windows defender as it likes to block the firmware verification after flash.

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Thanks for the response, I tried both pro flash and quick flash i got an error saying application error or something like that while activating it.

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