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Battery Calibration - Bootloop (after battery replacement)

Hey all. I apologize in advance- I know this topic has been asked and covered; however, I didn't see a solid answer and I think my situation is a bit different...

I installed iFixit's iPhone 6S Plus battery into my phone after many many months of descending battery life from the original. I installed this over the weekend and actually have it in my phone right now. I ended up having to bend/mangle the original battery as one of the adhesive strips broke/ripped before I could pull it out completely.

My PROBLEM: When I installed the battery, I was elated that I was even able to do that. I got the battery in and plugged it in to calibrate the battery. I know the instructions to calibrate the battery require uninterrupted charging up to 100%. Of course, the slightest movement from my dog happened and he bumped into the plug/cord, which disconnected/reconnected my phone immediately. I figured this messed up the battery calibration process?

Every time when my phone dies down to nothing and shuts down, it boots back up to the Apple logo, goes to black screen, crank wheel shows, and it goes into the boot loop of repeating this process. The phone usually drains down to about 2% before shutting off.

I've searched for answers on how to calibrate the battery properly and can't find a way to do it. The battery alone, uncalibrated, already lasts MUCH longer than my original battery; however, I'd love for it to be calibrated.

I've tried to let it drain, boot it up, let it drain, boot it up, etc. until it drains completely. I had one moment where the red battery icon appeared in the middle of the screen, as it should, and I left it plugged in after this to charge until full.

After letting it die down again to see if that worked - nothing. Still the boot loop.

Did I just mess the battery up by not properly calibrating. How can I calibrate this? Any help would be... helpful!

Отвечено! Посмотреть ответ У меня та же проблема

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Calibration is not the issue here, you simply have a bad replacement battery. To be certain, use a battery utility, such as coconutBattery (for Mac) or 3uTools (for Windows) if you can get the phone to boot properly. It will tell you what the health of the battery is. Anything less than 70% of design capacity will require replacement.

If you have access to a USB Ammeter, you could use that to determine if the phone is really drawing current when it says it's charging.

Finally, if your handy with a multimeter, you can measure the voltage directly from the battery. It should read more than ~3.2V to allow the device to boot and fully charged, it should measure ~4.2V. However even a "fully charged" battery that appears good can actually be bad, not being able to deliver enough current to power the device.

I would simply contact iFixit Support (help.ifixit.com) and ask for a replacement.

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Got around to downloading coconutBattery...

Design Capacity: 2750mAh

Full Charge Capacity: 2778mAh

Interesting how it's over the capacity. Anyway, That's what that says. I reached out to iFixit and was impressed with their customer service. They'll be sending me a new battery overnight and should be here tomorrow. I guess I just have to ensure it calibrates correctly the first time?

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I wouldn't over-worry about calibration. Sure, set it up right but that's not why batteries fail. The design capacity seems to indicate a good battery so the replacement you get may not solve your problem. However, these aftermarket batteries can be touch-n-go. Some even have fictitious design capacity numbers because the gas gauge IC's are cloned. For example, I ordered some iPad batteries (from a different vendor) and when I test them with coconut-battery, I get the same serial number and design capacity numbers for both. However, they were capable of supplying the juice so I can use them anyway.

iFixit typically has the best batteries but I'm sure they get a few duds once in a while. What's important is that they stand behind what they sell.

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My recommendation for you sir, is to remove the battery so the phone thinks its getting a new battery and this should allow it to be recalibrated if not or you have done this and i missed it let me know, Good Luck!

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Keith Bennis будет вечно благодарен.
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